TY  - CONF
AU  - Pantelic, Ana
AU  - Stevanovic, Strahinja
AU  - Milić Komić, Sonja
AU  - Kilibarda, Nataša
AU  - Vidović, Marija
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/3087
AB  - Ramonda serbica Panc. is an ancient resurrection plant, that survives a long desiccation period and fully recovers metabolic functions upon watering. The main characteristic of desiccationtolerant plant species is their ability to accumulate protective late embryogenesis abounded protein (LEAPs). To propose their role in R. serbica desiccation tolerance we structurally analysed LEAPs in hydrated and desiccated leaves. According to transcriptomics, 318 LEAPs were identified and classified into seven family groups based on protein BLAST analysis and conserved motifs (Pfam). The largest LEAPs belonged to the LEA2 and LEA4 protein family groups. We employed online tools to analyse physicochemical characteristics (Expasy, ProtParam, BioPython, GRAVY calculator), disorder propensity, and characterization protein structures (FELLS, JPred, SOPMA, PsiPred, Phyre2, Espritz-DisProt, Espritz-X, Iupred, TMHMM, +Heliquest). The most abundant, atypical LEA2 group containing 127, mostly hydrophobic proteins, was divided into five subgroups. Members of this group were predicted to fold into globular domains, β-barrel at the C-terminus, followed by transmembrane hydrophobic-helices and disordered N-terminal regions. Results indicated the possible involvement in the protection of the chloroplastic membranes. The LEA4 group exhibited an exceptionally high tendency to form amphipathic α-helices and simultaneously had a high disorder propensity. This group is made of 96 proteins, classified into 3 subgroups. The high content of polar and charged amino acids (lysine, glutamate, and aspartate) is characteristic of this group. Motifs corresponding to the R. serbica LEA4 protein family group folded into A-type α-helices that contained positive, negative, and hydrophobic surfaces. Based on previous knowledge, the possible functions of the LEA2 and LEA4 groups are discussed with significant implications on cell preservation technology and the improvement of crop drought tolerance.
PB  - Belgrade : Institute of molecular genetics and genetic engineering
C3  - 4th Belgrade Bioinformatics Conference, 2023, 4, 68-68
T1  - Two contrasting late embryogenesis abounded protein family groups of Ramonda serbica Panc.
SP  - 68
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_3087
ER  - 

@conference{
author = "Pantelic, Ana and Stevanovic, Strahinja and Milić Komić, Sonja and Kilibarda, Nataša and Vidović, Marija",
year = "2023",
abstract = "Ramonda serbica Panc. is an ancient resurrection plant, that survives a long desiccation period and fully recovers metabolic functions upon watering. The main characteristic of desiccationtolerant plant species is their ability to accumulate protective late embryogenesis abounded protein (LEAPs). To propose their role in R. serbica desiccation tolerance we structurally analysed LEAPs in hydrated and desiccated leaves. According to transcriptomics, 318 LEAPs were identified and classified into seven family groups based on protein BLAST analysis and conserved motifs (Pfam). The largest LEAPs belonged to the LEA2 and LEA4 protein family groups. We employed online tools to analyse physicochemical characteristics (Expasy, ProtParam, BioPython, GRAVY calculator), disorder propensity, and characterization protein structures (FELLS, JPred, SOPMA, PsiPred, Phyre2, Espritz-DisProt, Espritz-X, Iupred, TMHMM, +Heliquest). The most abundant, atypical LEA2 group containing 127, mostly hydrophobic proteins, was divided into five subgroups. Members of this group were predicted to fold into globular domains, β-barrel at the C-terminus, followed by transmembrane hydrophobic-helices and disordered N-terminal regions. Results indicated the possible involvement in the protection of the chloroplastic membranes. The LEA4 group exhibited an exceptionally high tendency to form amphipathic α-helices and simultaneously had a high disorder propensity. This group is made of 96 proteins, classified into 3 subgroups. The high content of polar and charged amino acids (lysine, glutamate, and aspartate) is characteristic of this group. Motifs corresponding to the R. serbica LEA4 protein family group folded into A-type α-helices that contained positive, negative, and hydrophobic surfaces. Based on previous knowledge, the possible functions of the LEA2 and LEA4 groups are discussed with significant implications on cell preservation technology and the improvement of crop drought tolerance.",
publisher = "Belgrade : Institute of molecular genetics and genetic engineering",
journal = "4th Belgrade Bioinformatics Conference, 2023, 4, 68-68",
title = "Two contrasting late embryogenesis abounded protein family groups of Ramonda serbica Panc.",
pages = "68",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_3087"
}

Pantelic, A., Stevanovic, S., Milić Komić, S., Kilibarda, N.,& Vidović, M.. (2023). Two contrasting late embryogenesis abounded protein family groups of Ramonda serbica Panc.. in 4th Belgrade Bioinformatics Conference, 2023, 4, 68-68
Belgrade : Institute of molecular genetics and genetic engineering., 68.
https://hdl.handle.net/21.15107/rcub_rimsi_3087

Pantelic A, Stevanovic S, Milić Komić S, Kilibarda N, Vidović M. Two contrasting late embryogenesis abounded protein family groups of Ramonda serbica Panc.. in 4th Belgrade Bioinformatics Conference, 2023, 4, 68-68. 2023;:68.
https://hdl.handle.net/21.15107/rcub_rimsi_3087 .

Pantelic, Ana, Stevanovic, Strahinja, Milić Komić, Sonja, Kilibarda, Nataša, Vidović, Marija, "Two contrasting late embryogenesis abounded protein family groups of Ramonda serbica Panc." in 4th Belgrade Bioinformatics Conference, 2023, 4, 68-68 (2023):68,
https://hdl.handle.net/21.15107/rcub_rimsi_3087 .

TY  - JOUR
AU  - Milić, Dejana
AU  - Živanović, Bojana
AU  - Samardžić, Jelena
AU  - Nikolić, Nenad
AU  - Cukier, Caroline
AU  - Limami, Anis M.
AU  - Vidović, Marija
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2390
AB  - Plants are inevitably exposed to extreme climatic conditions that lead to a disturbed balance
between the amount of absorbed energy and their ability to process it. Variegated leaves with
photosynthetically active green leaf tissue (GL) and photosynthetically inactive white leaf tissue
(WL) are an excellent model system to study source–sink interactions within the same leaf under the
same microenvironmental conditions. We demonstrated that under excess excitation energy (EEE)
conditions (high irradiance and lower temperature), regulated metabolic reprogramming in both
leaf tissues allowed an increased consumption of reducing equivalents, as evidenced by preserved
maximum efficiency of photosystem II (φPSII) at the end of the experiment. GL of the EEE-treated
plants employed two strategies: (i) the accumulation of flavonoid glycosides, especially cyanidin
glycosides, as an alternative electron sink, and (ii) cell wall stiffening by cellulose, pectin, and lignin
accumulation. On the other hand, WL increased the amount of free amino acids, mainly arginine,
asparagine, branched-chain and aromatic amino acids, as well as kaempferol and quercetin glycosides.
Thus, WL acts as an important energy escape valve that is required in order to maintain the successful
performance of the GL sectors under EEE conditions. Finally, this role could be an adaptive value of
variegation, as no consistent conclusions about its ecological benefits have been proposed so far.
PB  - MDPI AG, POSTFACH, BASEL, SWITZERLAND, CH-4005
T2  - International Journal of Molecular Sciences
T1  - Carbon and Nitrogen Allocation between the Sink and Source Leaf Tissue in Response to the Excess Excitation Energy Conditions
EP  - 2269
IS  - 3
SP  - 2269
VL  - 24
DO  - 10.3390/ijms24032269
ER  - 

@article{
author = "Milić, Dejana and Živanović, Bojana and Samardžić, Jelena and Nikolić, Nenad and Cukier, Caroline and Limami, Anis M. and Vidović, Marija",
year = "2023",
abstract = "Plants are inevitably exposed to extreme climatic conditions that lead to a disturbed balance
between the amount of absorbed energy and their ability to process it. Variegated leaves with
photosynthetically active green leaf tissue (GL) and photosynthetically inactive white leaf tissue
(WL) are an excellent model system to study source–sink interactions within the same leaf under the
same microenvironmental conditions. We demonstrated that under excess excitation energy (EEE)
conditions (high irradiance and lower temperature), regulated metabolic reprogramming in both
leaf tissues allowed an increased consumption of reducing equivalents, as evidenced by preserved
maximum efficiency of photosystem II (φPSII) at the end of the experiment. GL of the EEE-treated
plants employed two strategies: (i) the accumulation of flavonoid glycosides, especially cyanidin
glycosides, as an alternative electron sink, and (ii) cell wall stiffening by cellulose, pectin, and lignin
accumulation. On the other hand, WL increased the amount of free amino acids, mainly arginine,
asparagine, branched-chain and aromatic amino acids, as well as kaempferol and quercetin glycosides.
Thus, WL acts as an important energy escape valve that is required in order to maintain the successful
performance of the GL sectors under EEE conditions. Finally, this role could be an adaptive value of
variegation, as no consistent conclusions about its ecological benefits have been proposed so far.",
publisher = "MDPI AG, POSTFACH, BASEL, SWITZERLAND, CH-4005",
journal = "International Journal of Molecular Sciences",
title = "Carbon and Nitrogen Allocation between the Sink and Source Leaf Tissue in Response to the Excess Excitation Energy Conditions",
pages = "2269-2269",
number = "3",
volume = "24",
doi = "10.3390/ijms24032269"
}

Milić, D., Živanović, B., Samardžić, J., Nikolić, N., Cukier, C., Limami, A. M.,& Vidović, M.. (2023). Carbon and Nitrogen Allocation between the Sink and Source Leaf Tissue in Response to the Excess Excitation Energy Conditions. in International Journal of Molecular Sciences
MDPI AG, POSTFACH, BASEL, SWITZERLAND, CH-4005., 24(3), 2269-2269.
https://doi.org/10.3390/ijms24032269

Milić D, Živanović B, Samardžić J, Nikolić N, Cukier C, Limami AM, Vidović M. Carbon and Nitrogen Allocation between the Sink and Source Leaf Tissue in Response to the Excess Excitation Energy Conditions. in International Journal of Molecular Sciences. 2023;24(3):2269-2269.
doi:10.3390/ijms24032269 .

Milić, Dejana, Živanović, Bojana, Samardžić, Jelena, Nikolić, Nenad, Cukier, Caroline, Limami, Anis M., Vidović, Marija, "Carbon and Nitrogen Allocation between the Sink and Source Leaf Tissue in Response to the Excess Excitation Energy Conditions" in International Journal of Molecular Sciences, 24, no. 3 (2023):2269-2269,
https://doi.org/10.3390/ijms24032269 . .

TY  - JOUR
AU  - Milić Komić, Sonja
AU  - Veljović-Jovanović, Sonja
AU  - Pantelic, Ana
AU  - Vidović, Marija
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2900
AB  - Ressurection plants are extraordinary because of their ability to withstand long periods without water, enter a state of anhydrobiosis, and fully recover upon water arrival. Ramonda serbica Panč. is a relic and endemic species that belongs to a very small group of desiccation-tolerant plants in Europe. Underlying physiological, molecular and morphological mechanisms that enable these plants to survive harsh environmental conditions have been an appealing subject of many researchers. Most of the genes responsible for this amazing ability are present in other plants, and research of those genes which could be activated in crops is growing much more attention because of the imminent crisis regarding food supplies in the near future. Key components involved in the response to dehydration in R. serbica plants were analysed through a comprehensive transcriptomic, proteomic, metabolite and photosynthetic study. Late embryogenesis abundant proteins play a significant role in the complex defence processes involved in desiccation tolerance. Defining LEAPs physicochemical characteristics and specific physiological functions may lead us to their applicability in other areas of research.
PB  - Novi Sad : Faculty of Sciences, Department of Biology
T2  - Biologia Serbica
T1  - Structural characterisation of late embryogenesis abundant proteins in Ramonda serbica Panč.
EP  - 66
IS  - 44
SP  - 59
VL  - 1
DO  - 10.5281/zenodo.7075212
ER  - 

@article{
author = "Milić Komić, Sonja and Veljović-Jovanović, Sonja and Pantelic, Ana and Vidović, Marija",
year = "2022",
abstract = "Ressurection plants are extraordinary because of their ability to withstand long periods without water, enter a state of anhydrobiosis, and fully recover upon water arrival. Ramonda serbica Panč. is a relic and endemic species that belongs to a very small group of desiccation-tolerant plants in Europe. Underlying physiological, molecular and morphological mechanisms that enable these plants to survive harsh environmental conditions have been an appealing subject of many researchers. Most of the genes responsible for this amazing ability are present in other plants, and research of those genes which could be activated in crops is growing much more attention because of the imminent crisis regarding food supplies in the near future. Key components involved in the response to dehydration in R. serbica plants were analysed through a comprehensive transcriptomic, proteomic, metabolite and photosynthetic study. Late embryogenesis abundant proteins play a significant role in the complex defence processes involved in desiccation tolerance. Defining LEAPs physicochemical characteristics and specific physiological functions may lead us to their applicability in other areas of research.",
publisher = "Novi Sad : Faculty of Sciences, Department of Biology",
journal = "Biologia Serbica",
title = "Structural characterisation of late embryogenesis abundant proteins in Ramonda serbica Panč.",
pages = "66-59",
number = "44",
volume = "1",
doi = "10.5281/zenodo.7075212"
}

Milić Komić, S., Veljović-Jovanović, S., Pantelic, A.,& Vidović, M.. (2022). Structural characterisation of late embryogenesis abundant proteins in Ramonda serbica Panč.. in Biologia Serbica
Novi Sad : Faculty of Sciences, Department of Biology., 1(44), 59-66.
https://doi.org/10.5281/zenodo.7075212

Milić Komić S, Veljović-Jovanović S, Pantelic A, Vidović M. Structural characterisation of late embryogenesis abundant proteins in Ramonda serbica Panč.. in Biologia Serbica. 2022;1(44):59-66.
doi:10.5281/zenodo.7075212 .

Milić Komić, Sonja, Veljović-Jovanović, Sonja, Pantelic, Ana, Vidović, Marija, "Structural characterisation of late embryogenesis abundant proteins in Ramonda serbica Panč." in Biologia Serbica, 1, no. 44 (2022):59-66,
https://doi.org/10.5281/zenodo.7075212 . .

TY  - JOUR
AU  - Vidović, Marija
AU  - Battisti, Ilaria
AU  - Pantelić, Ana
AU  - Morina, Filis
AU  - Arrigoni, Giorgio
AU  - Masi, Antonio
AU  - Veljović-Jovanović, Sonja
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1574
AB  - The resurrection plant Ramonda serbica Panc. survives long desiccation periods and fully recovers metabolic functions within one day upon watering. This study aimed to identify key candidates and pathways involved in desiccation tolerance in R. serbica. We combined differential transcriptomics and proteomics, phenolic and sugar analysis, FTIR analysis of the cell wall polymers, and detailed analysis of the photosynthetic electron transport (PET) chain. The proteomic analysis allowed the relative quantification of 1192 different protein groups, of which 408 were differentially abundant between hydrated (HL) and desiccated leaves (DL). Almost all differentially abundant proteins related to photosynthetic processes were less abundant, while chlorophyll fluorescence measurements implied shifting from linear PET to cyclic electron transport (CET). The levels of H2O2 scavenging enzymes, ascorbate-glutathione cycle components, catalases, peroxiredoxins, Fe-, and Mn superoxide dismutase (SOD) were reduced in DL. However, six germin-like proteins (GLPs), four Cu/ZnSOD isoforms, three polyphenol oxidases, and 22 late embryogenesis abundant proteins (LEAPs; mainly LEA4 and dehydrins), were desiccation-inducible. Desiccation provoked cell wall remodeling related to GLP-derived H2O2/HO● activity and pectin demethylesterification. This comprehensive study contributes to understanding the role and regulation of the main metabolic pathways during desiccation aiming at crop drought tolerance improvement
PB  - MDPI
T2  - Plants
T1  - Desiccation Tolerance in Ramonda serbica Panc.: An Integrative Transcriptomic, Proteomic, Metabolite and Photosynthetic Study
IS  - 9
SP  - 1199
VL  - 11
DO  - 10.3390/plants11091199
ER  - 

@article{
author = "Vidović, Marija and Battisti, Ilaria and Pantelić, Ana and Morina, Filis and Arrigoni, Giorgio and Masi, Antonio and Veljović-Jovanović, Sonja",
year = "2022",
abstract = "The resurrection plant Ramonda serbica Panc. survives long desiccation periods and fully recovers metabolic functions within one day upon watering. This study aimed to identify key candidates and pathways involved in desiccation tolerance in R. serbica. We combined differential transcriptomics and proteomics, phenolic and sugar analysis, FTIR analysis of the cell wall polymers, and detailed analysis of the photosynthetic electron transport (PET) chain. The proteomic analysis allowed the relative quantification of 1192 different protein groups, of which 408 were differentially abundant between hydrated (HL) and desiccated leaves (DL). Almost all differentially abundant proteins related to photosynthetic processes were less abundant, while chlorophyll fluorescence measurements implied shifting from linear PET to cyclic electron transport (CET). The levels of H2O2 scavenging enzymes, ascorbate-glutathione cycle components, catalases, peroxiredoxins, Fe-, and Mn superoxide dismutase (SOD) were reduced in DL. However, six germin-like proteins (GLPs), four Cu/ZnSOD isoforms, three polyphenol oxidases, and 22 late embryogenesis abundant proteins (LEAPs; mainly LEA4 and dehydrins), were desiccation-inducible. Desiccation provoked cell wall remodeling related to GLP-derived H2O2/HO● activity and pectin demethylesterification. This comprehensive study contributes to understanding the role and regulation of the main metabolic pathways during desiccation aiming at crop drought tolerance improvement",
publisher = "MDPI",
journal = "Plants",
title = "Desiccation Tolerance in Ramonda serbica Panc.: An Integrative Transcriptomic, Proteomic, Metabolite and Photosynthetic Study",
number = "9",
pages = "1199",
volume = "11",
doi = "10.3390/plants11091199"
}

Vidović, M., Battisti, I., Pantelić, A., Morina, F., Arrigoni, G., Masi, A.,& Veljović-Jovanović, S.. (2022). Desiccation Tolerance in Ramonda serbica Panc.: An Integrative Transcriptomic, Proteomic, Metabolite and Photosynthetic Study. in Plants
MDPI., 11(9), 1199.
https://doi.org/10.3390/plants11091199

Vidović M, Battisti I, Pantelić A, Morina F, Arrigoni G, Masi A, Veljović-Jovanović S. Desiccation Tolerance in Ramonda serbica Panc.: An Integrative Transcriptomic, Proteomic, Metabolite and Photosynthetic Study. in Plants. 2022;11(9):1199.
doi:10.3390/plants11091199 .

Vidović, Marija, Battisti, Ilaria, Pantelić, Ana, Morina, Filis, Arrigoni, Giorgio, Masi, Antonio, Veljović-Jovanović, Sonja, "Desiccation Tolerance in Ramonda serbica Panc.: An Integrative Transcriptomic, Proteomic, Metabolite and Photosynthetic Study" in Plants, 11, no. 9 (2022):1199,
https://doi.org/10.3390/plants11091199 . .

TY  - CONF
AU  - Milić Komić, Sonja
AU  - Veljović-Jovanović, Sonja
AU  - Pantelic, Ana
AU  - Vidović, Marija
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/3086
AB  - Ressurection plants are extraordinary because of their ability to withstand long periods without water, enter a state of anhydrobiosis, and fully recover upon water arrival. Ramonda serbica is a relic and endemic species that belong to a very small group of desiccation-tolerant plants in Europe. Underlying physiological, molecular and morphological mechanisms that enable these plants to survive harsh environmental conditions have been an appealing subject to many researchers. Most of the genes responsible for this amazing ability are present in other plants, and this path of research where those genes could be activated in crops is growing much more attention because of the imminent crisis regarding food supplies in the near future. Key components involved in the response to dehydration in R. serbica plants were analysed through a comprehensive transcriptomic, proteomic, metabolite and photosynthetic study. Late embryogenesis abundant proteins play a significant role in the complex defence processes involved in desiccation tolerance. Defining physicochemical characteristics and specific physiological functions of late embryogenesis abundant proteins – LEAPs may lead to their applicability in other areas of research.
PB  - Belgrade : Faculty of Chemistry, Serbian Biochemical Society
C3  - Serbian Biochemical Society Eleventh Conference (scientific meeting of an international character) - "Amazing Biochemistry"
T1  - Late embryogenesis abundant proteins: Structural characterisation and interaction with α-synuclein
SP  - 37
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_3086
ER  - 

@conference{
author = "Milić Komić, Sonja and Veljović-Jovanović, Sonja and Pantelic, Ana and Vidović, Marija",
year = "2022",
abstract = "Ressurection plants are extraordinary because of their ability to withstand long periods without water, enter a state of anhydrobiosis, and fully recover upon water arrival. Ramonda serbica is a relic and endemic species that belong to a very small group of desiccation-tolerant plants in Europe. Underlying physiological, molecular and morphological mechanisms that enable these plants to survive harsh environmental conditions have been an appealing subject to many researchers. Most of the genes responsible for this amazing ability are present in other plants, and this path of research where those genes could be activated in crops is growing much more attention because of the imminent crisis regarding food supplies in the near future. Key components involved in the response to dehydration in R. serbica plants were analysed through a comprehensive transcriptomic, proteomic, metabolite and photosynthetic study. Late embryogenesis abundant proteins play a significant role in the complex defence processes involved in desiccation tolerance. Defining physicochemical characteristics and specific physiological functions of late embryogenesis abundant proteins – LEAPs may lead to their applicability in other areas of research.",
publisher = "Belgrade : Faculty of Chemistry, Serbian Biochemical Society",
journal = "Serbian Biochemical Society Eleventh Conference (scientific meeting of an international character) - "Amazing Biochemistry"",
title = "Late embryogenesis abundant proteins: Structural characterisation and interaction with α-synuclein",
pages = "37",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_3086"
}

Milić Komić, S., Veljović-Jovanović, S., Pantelic, A.,& Vidović, M.. (2022). Late embryogenesis abundant proteins: Structural characterisation and interaction with α-synuclein. in Serbian Biochemical Society Eleventh Conference (scientific meeting of an international character) - "Amazing Biochemistry"
Belgrade : Faculty of Chemistry, Serbian Biochemical Society., 37.
https://hdl.handle.net/21.15107/rcub_rimsi_3086

Milić Komić S, Veljović-Jovanović S, Pantelic A, Vidović M. Late embryogenesis abundant proteins: Structural characterisation and interaction with α-synuclein. in Serbian Biochemical Society Eleventh Conference (scientific meeting of an international character) - "Amazing Biochemistry". 2022;:37.
https://hdl.handle.net/21.15107/rcub_rimsi_3086 .

Milić Komić, Sonja, Veljović-Jovanović, Sonja, Pantelic, Ana, Vidović, Marija, "Late embryogenesis abundant proteins: Structural characterisation and interaction with α-synuclein" in Serbian Biochemical Society Eleventh Conference (scientific meeting of an international character) - "Amazing Biochemistry" (2022):37,
https://hdl.handle.net/21.15107/rcub_rimsi_3086 .

TY  - CONF
AU  - Pantelic, Ana
AU  - Stevanovic, Strahinja
AU  - Milić, Dejana
AU  - Milić Komić, Sonja
AU  - Kilibarda, Nataša
AU  - Vidović, Marija
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/3085
AB  - An ancient resurrection plant Ramonda serbica Panc. is able to survive a long desiccation period and reestablish metabolic activity upon watering. A hallmark of desiccation tolerance in the resurrection species is the accumulation of protective late embryogenesis abundant proteins (LEAPs). These intrinsically disordered proteins (IDPs) may stabilize the correct structure of proteins and membranes during cellular dehydration. The aim of our study was to assess LEA genes’ expression levels in hydrated (HL) and desiccated leaves (DL) and to identify, characterise, and estimate the potential role of R. serbica LEAPs in desiccation tolerance. In total, 318 LEAPs from HL and DL were identified and classified into the seven LEA protein family groups ranging from LEA1-LEA5, seed maturation proteins (SMPs), and dehydrins (DEH). Analysis of the physicochemical properties, motif architecture, secondary structure, homology, and phylogenetic relationships demonstrated that R. serbica LEAPs greatly differed among the LEA family groups. The most abundant LEA2 proteins (mostly downregulated upon desiccation) exhibited lower hydrophilicity and propensity to fold into organised globular domains. Oppositely, hydrophilic LEA4 proteins tended to form amphipathic, A-type, α-helices. Most of desiccation-upregulated LEA genes encoded highly disordered DEH1, LEA1, LEA4.2, and LEA4.3 proteins. While dehydrins might chelate metals and bind DNA under water deficit, other ID LEAPs (e.g. LEA1, LEA3, LEA4) might participate in forming intracellular proteinaceous condensates or adopt amphipathic α-helical conformation, enabling them to stabilise desiccation-sensitive proteins and membranes. Taken together, possible functions of LEAPs are discussed with significant implications on drought tolerance improvement of crops grown in arid areas.
PB  - Serbian Plant Physiology Society
PB  - Institute for Biological Research “Siniša Stanković” – National Institute of Republic of Serbia, University of Belgrade
PB  - Faculty of Biology, University of Belgrade
C3  - Book of Abstracts / 4th International Conference on Plant Biology [and] 23rd SPPS Meeting, 6-8 October 2022, Belgrade, 2022, 83-
T1  - Late embryogenesis abundant (LEA) proteins in Ramonda serbica Panc identification, classification and structural characterization
SP  - 95
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_3085
ER  - 

@conference{
author = "Pantelic, Ana and Stevanovic, Strahinja and Milić, Dejana and Milić Komić, Sonja and Kilibarda, Nataša and Vidović, Marija",
year = "2022",
abstract = "An ancient resurrection plant Ramonda serbica Panc. is able to survive a long desiccation period and reestablish metabolic activity upon watering. A hallmark of desiccation tolerance in the resurrection species is the accumulation of protective late embryogenesis abundant proteins (LEAPs). These intrinsically disordered proteins (IDPs) may stabilize the correct structure of proteins and membranes during cellular dehydration. The aim of our study was to assess LEA genes’ expression levels in hydrated (HL) and desiccated leaves (DL) and to identify, characterise, and estimate the potential role of R. serbica LEAPs in desiccation tolerance. In total, 318 LEAPs from HL and DL were identified and classified into the seven LEA protein family groups ranging from LEA1-LEA5, seed maturation proteins (SMPs), and dehydrins (DEH). Analysis of the physicochemical properties, motif architecture, secondary structure, homology, and phylogenetic relationships demonstrated that R. serbica LEAPs greatly differed among the LEA family groups. The most abundant LEA2 proteins (mostly downregulated upon desiccation) exhibited lower hydrophilicity and propensity to fold into organised globular domains. Oppositely, hydrophilic LEA4 proteins tended to form amphipathic, A-type, α-helices. Most of desiccation-upregulated LEA genes encoded highly disordered DEH1, LEA1, LEA4.2, and LEA4.3 proteins. While dehydrins might chelate metals and bind DNA under water deficit, other ID LEAPs (e.g. LEA1, LEA3, LEA4) might participate in forming intracellular proteinaceous condensates or adopt amphipathic α-helical conformation, enabling them to stabilise desiccation-sensitive proteins and membranes. Taken together, possible functions of LEAPs are discussed with significant implications on drought tolerance improvement of crops grown in arid areas.",
publisher = "Serbian Plant Physiology Society, Institute for Biological Research “Siniša Stanković” – National Institute of Republic of Serbia, University of Belgrade, Faculty of Biology, University of Belgrade",
journal = "Book of Abstracts / 4th International Conference on Plant Biology [and] 23rd SPPS Meeting, 6-8 October 2022, Belgrade, 2022, 83-",
title = "Late embryogenesis abundant (LEA) proteins in Ramonda serbica Panc identification, classification and structural characterization",
pages = "95",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_3085"
}

Pantelic, A., Stevanovic, S., Milić, D., Milić Komić, S., Kilibarda, N.,& Vidović, M.. (2022). Late embryogenesis abundant (LEA) proteins in Ramonda serbica Panc identification, classification and structural characterization. in Book of Abstracts / 4th International Conference on Plant Biology [and] 23rd SPPS Meeting, 6-8 October 2022, Belgrade, 2022, 83-
Serbian Plant Physiology Society., 95.
https://hdl.handle.net/21.15107/rcub_rimsi_3085

Pantelic A, Stevanovic S, Milić D, Milić Komić S, Kilibarda N, Vidović M. Late embryogenesis abundant (LEA) proteins in Ramonda serbica Panc identification, classification and structural characterization. in Book of Abstracts / 4th International Conference on Plant Biology [and] 23rd SPPS Meeting, 6-8 October 2022, Belgrade, 2022, 83-. 2022;:95.
https://hdl.handle.net/21.15107/rcub_rimsi_3085 .

Pantelic, Ana, Stevanovic, Strahinja, Milić, Dejana, Milić Komić, Sonja, Kilibarda, Nataša, Vidović, Marija, "Late embryogenesis abundant (LEA) proteins in Ramonda serbica Panc identification, classification and structural characterization" in Book of Abstracts / 4th International Conference on Plant Biology [and] 23rd SPPS Meeting, 6-8 October 2022, Belgrade, 2022, 83- (2022):95,
https://hdl.handle.net/21.15107/rcub_rimsi_3085 .

TY  - CONF
AU  - Nikolic, Ljiljana
AU  - Vidović, Marija
AU  - Todorovic, Natasa
AU  - Petkovic, Branka
AU  - Stojadinovic, Gordana
AU  - Martac, Ljiljana
AU  - Bogdanović Pristov, Jelena
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2008
AB  - Investigating membrane properties of plants is a challenging task, considering that success of 
experiments is highly dependent on the possibility to isolate metabolically active protoplasts that 
can withstand membrane current recordings. The aim of the present work is to obtain viable 
protoplasts derived from root cells of Pisum sativum that can be used for the whole-cell patch
clamp. We designed the procedure of the pea protoplasts isolation that delivers stable protoplasts 
with preserved membrane integrity suitable for electrophysiological experiments. We applied a 
custom approach for patch-clamping protoplasts using a microscope with a movable microscope 
stage. We recorded prominent inward and prominent outward types of membrane current profiles of protoplasts. Obtained data indicate that optimized isolation protocol and custom system for patch clamping, can be applied to study membrane properties of root protoplasts.
PB  - Society of Physical Chemists of Serbia
C3  - PHYSICAL CHEMISTRY 2022, 16th International Conference on Fundamental and Applied Aspects  of Physical Chemistry (Proceedings)
T1  - PROTOPLAST PATCH-CLAMPING USING AN UPRIGHT MICROSCOPE  WITH A MOVABLE STAGE
EP  - 274
SP  - 271
VL  - 1
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2008
ER  - 

@conference{
author = "Nikolic, Ljiljana and Vidović, Marija and Todorovic, Natasa and Petkovic, Branka and Stojadinovic, Gordana and Martac, Ljiljana and Bogdanović Pristov, Jelena",
year = "2022",
abstract = "Investigating membrane properties of plants is a challenging task, considering that success of 
experiments is highly dependent on the possibility to isolate metabolically active protoplasts that 
can withstand membrane current recordings. The aim of the present work is to obtain viable 
protoplasts derived from root cells of Pisum sativum that can be used for the whole-cell patch
clamp. We designed the procedure of the pea protoplasts isolation that delivers stable protoplasts 
with preserved membrane integrity suitable for electrophysiological experiments. We applied a 
custom approach for patch-clamping protoplasts using a microscope with a movable microscope 
stage. We recorded prominent inward and prominent outward types of membrane current profiles of protoplasts. Obtained data indicate that optimized isolation protocol and custom system for patch clamping, can be applied to study membrane properties of root protoplasts.",
publisher = "Society of Physical Chemists of Serbia",
journal = "PHYSICAL CHEMISTRY 2022, 16th International Conference on Fundamental and Applied Aspects  of Physical Chemistry (Proceedings)",
title = "PROTOPLAST PATCH-CLAMPING USING AN UPRIGHT MICROSCOPE  WITH A MOVABLE STAGE",
pages = "274-271",
volume = "1",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2008"
}

Nikolic, L., Vidović, M., Todorovic, N., Petkovic, B., Stojadinovic, G., Martac, L.,& Bogdanović Pristov, J.. (2022). PROTOPLAST PATCH-CLAMPING USING AN UPRIGHT MICROSCOPE  WITH A MOVABLE STAGE. in PHYSICAL CHEMISTRY 2022, 16th International Conference on Fundamental and Applied Aspects  of Physical Chemistry (Proceedings)
Society of Physical Chemists of Serbia., 1, 271-274.
https://hdl.handle.net/21.15107/rcub_rimsi_2008

Nikolic L, Vidović M, Todorovic N, Petkovic B, Stojadinovic G, Martac L, Bogdanović Pristov J. PROTOPLAST PATCH-CLAMPING USING AN UPRIGHT MICROSCOPE  WITH A MOVABLE STAGE. in PHYSICAL CHEMISTRY 2022, 16th International Conference on Fundamental and Applied Aspects  of Physical Chemistry (Proceedings). 2022;1:271-274.
https://hdl.handle.net/21.15107/rcub_rimsi_2008 .

Nikolic, Ljiljana, Vidović, Marija, Todorovic, Natasa, Petkovic, Branka, Stojadinovic, Gordana, Martac, Ljiljana, Bogdanović Pristov, Jelena, "PROTOPLAST PATCH-CLAMPING USING AN UPRIGHT MICROSCOPE  WITH A MOVABLE STAGE" in PHYSICAL CHEMISTRY 2022, 16th International Conference on Fundamental and Applied Aspects  of Physical Chemistry (Proceedings), 1 (2022):271-274,
https://hdl.handle.net/21.15107/rcub_rimsi_2008 .

TY  - CONF
AU  - Tomić, Katarina
AU  - Šokrda Slavić, Marinela
AU  - Kojić, Milan
AU  - Stanisavljević, Nemanja
AU  - Nikolić, Stefan
AU  - Vujčić, Zoran
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1771
AB  - One of the most abundant natural polymers with multidimensional and multifaceted application is starch. Due to energy fuel sustainability concern, the world is focusing on renewable energy including energy from renewable biological materials like starch1. The importance of the enzymatic hydrolysis of granular starch below the temperature of gelatinization has been well recognized, mainly due to energy savings and the effective utilization of biomass, which reduces the overall cost of starch processing2. A new α-amylase gene (Amy35) was cloned from newly isolated thermophilic Anoxybacillus sp. ST4 and expressed in Escherichia coli. The purified recombinant α-amylase had an wide pH optimum range from 4.5 to 8.5 and optimum temperature of 75°C. The enzyme retained 95% of its activity after 3h of incubation at 50 and 60°C. Hydrolysis rates of potato, horseradish and corn starches, at 1% concentration were 20, 70 and 65%, respectively, in a period of 16 h. Analysis of the enzyme properties proved its high efficacy for the digestion of diverse raw starches below gelatinization temperature and, therefore, its potential commercial value for use as an industrial enzyme.
PB  - Faculty of Chemistry, Serbian Biochemical Society
C3  - Serbian Biochemical Society Eleventh Conference
T1  - Cloning and characterization of new raw starch digestion α-amylase from thermophilic Anoxybacillus sp.
SP  - 147
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1771
ER  - 

@conference{
author = "Tomić, Katarina and Šokrda Slavić, Marinela and Kojić, Milan and Stanisavljević, Nemanja and Nikolić, Stefan and Vujčić, Zoran",
year = "2022",
abstract = "One of the most abundant natural polymers with multidimensional and multifaceted application is starch. Due to energy fuel sustainability concern, the world is focusing on renewable energy including energy from renewable biological materials like starch1. The importance of the enzymatic hydrolysis of granular starch below the temperature of gelatinization has been well recognized, mainly due to energy savings and the effective utilization of biomass, which reduces the overall cost of starch processing2. A new α-amylase gene (Amy35) was cloned from newly isolated thermophilic Anoxybacillus sp. ST4 and expressed in Escherichia coli. The purified recombinant α-amylase had an wide pH optimum range from 4.5 to 8.5 and optimum temperature of 75°C. The enzyme retained 95% of its activity after 3h of incubation at 50 and 60°C. Hydrolysis rates of potato, horseradish and corn starches, at 1% concentration were 20, 70 and 65%, respectively, in a period of 16 h. Analysis of the enzyme properties proved its high efficacy for the digestion of diverse raw starches below gelatinization temperature and, therefore, its potential commercial value for use as an industrial enzyme.",
publisher = "Faculty of Chemistry, Serbian Biochemical Society",
journal = "Serbian Biochemical Society Eleventh Conference",
title = "Cloning and characterization of new raw starch digestion α-amylase from thermophilic Anoxybacillus sp.",
pages = "147",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1771"
}

Tomić, K., Šokrda Slavić, M., Kojić, M., Stanisavljević, N., Nikolić, S.,& Vujčić, Z.. (2022). Cloning and characterization of new raw starch digestion α-amylase from thermophilic Anoxybacillus sp.. in Serbian Biochemical Society Eleventh Conference
Faculty of Chemistry, Serbian Biochemical Society., 147.
https://hdl.handle.net/21.15107/rcub_rimsi_1771

Tomić K, Šokrda Slavić M, Kojić M, Stanisavljević N, Nikolić S, Vujčić Z. Cloning and characterization of new raw starch digestion α-amylase from thermophilic Anoxybacillus sp.. in Serbian Biochemical Society Eleventh Conference. 2022;:147.
https://hdl.handle.net/21.15107/rcub_rimsi_1771 .

Tomić, Katarina, Šokrda Slavić, Marinela, Kojić, Milan, Stanisavljević, Nemanja, Nikolić, Stefan, Vujčić, Zoran, "Cloning and characterization of new raw starch digestion α-amylase from thermophilic Anoxybacillus sp." in Serbian Biochemical Society Eleventh Conference (2022):147,
https://hdl.handle.net/21.15107/rcub_rimsi_1771 .

TY  - CONF
AU  - Milić Komić, Sonja
AU  - Stevanović, Strahinja
AU  - Vidović, Marija
PY  - 2021
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1491
AB  - Ramonda serbica Panc. is a resurrection plant that can survive long desiccation
periods (extreme loss of cellular water). The accumulation of late embryogenesis abundant
proteins (LEAPs) is a crucial step in desiccation tolerance mechanism. Based on in vitro studies,
LEAPs can be involved in antioxidative defense, ion sequestration, structural stabilization
of both membranes and enzymes during freezing or drying, while by forming intracellular
proteinaceous condensates they increase structural integrity and intracellular viscosity of cells
during desiccation. Here we investigated the antioxidative potential of LEAPs identified by de
novo transcriptomics of R. serbica, based on their primary and secondary confirmation. In our
previous work [1], we displayed the antioxidative capacity of 20 free proteogenic amino acids
(FAA) through determining their hydroxyl radical (•
OH, generated in Fenton reaction) scavenging
rate by using electron paramagnetic resonance. These results served as a basis for generating
a model for prediction of •
OH scavenging activity for selected proteins. In addition, the model
was built based on protein primary sequences, hydrophobicity, 3D structure and predicted
solvent accessible area. Manually curated data for peptides and proteins with experimentally
determined •
OH scavenging rate were used for training and testing. The model was fed into
machine learning algorithm and •
OH scavenging potential scale was created using IC50 values.
By applying our model, we classified 164 LEAPs according to their potential for •
OH scavenging.
Further work will focus on the experimental evaluation of the obtained model by measuring of
the rate of •
OH scavenging in the presence of recombinantly produced LEAPs.
PB  - Elsevier Science Inc, New York
C3  - Free Radical Biology and Medicine
T1  - Hydroxyl radical scavenging potential of the late embryogenesis abundant proteins (LEA) proteins from Ramonda serbica - in silico approach
VL  - 177
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1491
ER  - 

@conference{
author = "Milić Komić, Sonja and Stevanović, Strahinja and Vidović, Marija",
year = "2021",
abstract = "Ramonda serbica Panc. is a resurrection plant that can survive long desiccation
periods (extreme loss of cellular water). The accumulation of late embryogenesis abundant
proteins (LEAPs) is a crucial step in desiccation tolerance mechanism. Based on in vitro studies,
LEAPs can be involved in antioxidative defense, ion sequestration, structural stabilization
of both membranes and enzymes during freezing or drying, while by forming intracellular
proteinaceous condensates they increase structural integrity and intracellular viscosity of cells
during desiccation. Here we investigated the antioxidative potential of LEAPs identified by de
novo transcriptomics of R. serbica, based on their primary and secondary confirmation. In our
previous work [1], we displayed the antioxidative capacity of 20 free proteogenic amino acids
(FAA) through determining their hydroxyl radical (•
OH, generated in Fenton reaction) scavenging
rate by using electron paramagnetic resonance. These results served as a basis for generating
a model for prediction of •
OH scavenging activity for selected proteins. In addition, the model
was built based on protein primary sequences, hydrophobicity, 3D structure and predicted
solvent accessible area. Manually curated data for peptides and proteins with experimentally
determined •
OH scavenging rate were used for training and testing. The model was fed into
machine learning algorithm and •
OH scavenging potential scale was created using IC50 values.
By applying our model, we classified 164 LEAPs according to their potential for •
OH scavenging.
Further work will focus on the experimental evaluation of the obtained model by measuring of
the rate of •
OH scavenging in the presence of recombinantly produced LEAPs.",
publisher = "Elsevier Science Inc, New York",
journal = "Free Radical Biology and Medicine",
title = "Hydroxyl radical scavenging potential of the late embryogenesis abundant proteins (LEA) proteins from Ramonda serbica - in silico approach",
volume = "177",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1491"
}

Milić Komić, S., Stevanović, S.,& Vidović, M.. (2021). Hydroxyl radical scavenging potential of the late embryogenesis abundant proteins (LEA) proteins from Ramonda serbica - in silico approach. in Free Radical Biology and Medicine
Elsevier Science Inc, New York., 177.
https://hdl.handle.net/21.15107/rcub_rimsi_1491

Milić Komić S, Stevanović S, Vidović M. Hydroxyl radical scavenging potential of the late embryogenesis abundant proteins (LEA) proteins from Ramonda serbica - in silico approach. in Free Radical Biology and Medicine. 2021;177.
https://hdl.handle.net/21.15107/rcub_rimsi_1491 .

Milić Komić, Sonja, Stevanović, Strahinja, Vidović, Marija, "Hydroxyl radical scavenging potential of the late embryogenesis abundant proteins (LEA) proteins from Ramonda serbica - in silico approach" in Free Radical Biology and Medicine, 177 (2021),
https://hdl.handle.net/21.15107/rcub_rimsi_1491 .

TY  - JOUR
AU  - Avdović, Edina H.
AU  - Petrović, Isidora P.
AU  - Stevanović, Milena J.
AU  - Saso, Luciano
AU  - Dimitrić-Marković, Jasmina
AU  - Filipović, Nenad D.
AU  - Zivić, Miroslav
AU  - Cvetic, Antic, Tijana N.
AU  - Žižić, Milan
AU  - Todorović, Nataša
AU  - Vukic, Milena
AU  - Trifunović, Srecko R.
AU  - Marković, Zoran S.
PY  - 2021
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1457
AB  - Two newly synthesized 4-hydroxycoumarin bidentate ligands (L1 and L2) and their palladium(II) complexes (C1 and C2) were screened for their biological activities, in vitro and in vivo. Structures of new compounds were established based on elemental analysis, H-1 NMR, C-13 NMR, and IR spectroscopic techniques. The obtained compounds were tested for their antioxidative and cytotoxic activities and results pointed to selective antiradical activity of palladium(II) complexes towards (OH)-O-center dot and -center dot OOH radicals and anti-ABTS (2,2 '-Azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) cation radical) activity comparable to that of ascorbate. Results indicated the effect of C1 and C2 on the enzymatic activity of the antioxidative defense system. In vitro cytotoxicity assay performed on different carcinoma cell lines (HCT166, A375, and MIA PaCa-2), and one healthy fibroblast cell line (MRC-5) showed a cytotoxic effect of both C1 and C2, expressed as a decrease in carcinoma cells' viability, mostly by induction of apoptosis. In vivo toxicity tests performed on zebrafish embryos indicated different effects of C1 and C2, ranging from adverse developmental effect to no toxicity, depending on tested concentration. According to docking studies, both complexes (C1 and C2) showed better inhibitory activity in comparison to other palladium(II) complexes.
PB  - Hindawi Ltd, London
T2  - Oxidative Medicine and Cellular Longevity
T1  - Synthesis and Biological Screening of New 4-Hydroxycoumarin Derivatives and Their Palladium(II) Complexes
VL  - 2021
DO  - 10.1155/2021/8849568
ER  - 

@article{
author = "Avdović, Edina H. and Petrović, Isidora P. and Stevanović, Milena J. and Saso, Luciano and Dimitrić-Marković, Jasmina and Filipović, Nenad D. and Zivić, Miroslav and Cvetic, Antic, Tijana N. and Žižić, Milan and Todorović, Nataša and Vukic, Milena and Trifunović, Srecko R. and Marković, Zoran S.",
year = "2021",
abstract = "Two newly synthesized 4-hydroxycoumarin bidentate ligands (L1 and L2) and their palladium(II) complexes (C1 and C2) were screened for their biological activities, in vitro and in vivo. Structures of new compounds were established based on elemental analysis, H-1 NMR, C-13 NMR, and IR spectroscopic techniques. The obtained compounds were tested for their antioxidative and cytotoxic activities and results pointed to selective antiradical activity of palladium(II) complexes towards (OH)-O-center dot and -center dot OOH radicals and anti-ABTS (2,2 '-Azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) cation radical) activity comparable to that of ascorbate. Results indicated the effect of C1 and C2 on the enzymatic activity of the antioxidative defense system. In vitro cytotoxicity assay performed on different carcinoma cell lines (HCT166, A375, and MIA PaCa-2), and one healthy fibroblast cell line (MRC-5) showed a cytotoxic effect of both C1 and C2, expressed as a decrease in carcinoma cells' viability, mostly by induction of apoptosis. In vivo toxicity tests performed on zebrafish embryos indicated different effects of C1 and C2, ranging from adverse developmental effect to no toxicity, depending on tested concentration. According to docking studies, both complexes (C1 and C2) showed better inhibitory activity in comparison to other palladium(II) complexes.",
publisher = "Hindawi Ltd, London",
journal = "Oxidative Medicine and Cellular Longevity",
title = "Synthesis and Biological Screening of New 4-Hydroxycoumarin Derivatives and Their Palladium(II) Complexes",
volume = "2021",
doi = "10.1155/2021/8849568"
}

Avdović, E. H., Petrović, I. P., Stevanović, M. J., Saso, L., Dimitrić-Marković, J., Filipović, N. D., Zivić, M., Cvetic, A. T. N., Žižić, M., Todorović, N., Vukic, M., Trifunović, S. R.,& Marković, Z. S.. (2021). Synthesis and Biological Screening of New 4-Hydroxycoumarin Derivatives and Their Palladium(II) Complexes. in Oxidative Medicine and Cellular Longevity
Hindawi Ltd, London., 2021.
https://doi.org/10.1155/2021/8849568

Avdović EH, Petrović IP, Stevanović MJ, Saso L, Dimitrić-Marković J, Filipović ND, Zivić M, Cvetic ATN, Žižić M, Todorović N, Vukic M, Trifunović SR, Marković ZS. Synthesis and Biological Screening of New 4-Hydroxycoumarin Derivatives and Their Palladium(II) Complexes. in Oxidative Medicine and Cellular Longevity. 2021;2021.
doi:10.1155/2021/8849568 .

Avdović, Edina H., Petrović, Isidora P., Stevanović, Milena J., Saso, Luciano, Dimitrić-Marković, Jasmina, Filipović, Nenad D., Zivić, Miroslav, Cvetic, Antic, Tijana N., Žižić, Milan, Todorović, Nataša, Vukic, Milena, Trifunović, Srecko R., Marković, Zoran S., "Synthesis and Biological Screening of New 4-Hydroxycoumarin Derivatives and Their Palladium(II) Complexes" in Oxidative Medicine and Cellular Longevity, 2021 (2021),
https://doi.org/10.1155/2021/8849568 . .

TY  - CONF
AU  - Markovic, Nemanja
AU  - Milić Komić, Sonja
AU  - Radosavljevic, Jelena
AU  - Pantelic, Ana
AU  - Kilibarda, Nataša
AU  - Vidović, Marija
PY  - 2021
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/3084
AB  - Late embryogenesis abundant (LEA) proteins are induced in cellular dehydration, such as freezing, drought, or desiccation. They can be involved in antioxidative defense, ion sequestration, and structural stabilization of both membranes and enzymes during freezing or drying, while by forming intracellular proteinaceous condensates they increase structural integrity and intracellular viscosity of cells during desiccation 1. The genome of the model plant Arabidopsis thaliana contains 51 genes encoding LEA proteins2. The majority of these LEA proteins (35%) belongs to Pfam LEA_4 (PF02987) family. In silico analysis suggested that these proteins are highly hydrophilic proteins with significant intrinsically disordered protein (IDP) properties. In order to evaluate structural properties and possible functions of LEA_4 protein family under different water content, a representative AtLEA25 protein (At2g42560, 635 aa), naturally located in the cytoplasm of seeds3 was obtained in Escherichia coli by recombinant DNA technology. Although this technology has been traditionally used to over-express and purify various globular proteins, numerous reports have shown that the IDPs, due to their structural plasicity are naturally highly susceptible to proteolytic cleavage. To conduct structural and functional studies we developed a robust method to produce highly purified (>95% pure) AtLEA25 with no detectable amount of protein breakdown products.
PB  - Belgrade : Serbian Biochemical Society
C3  - Biochemical Insights into Molecular Mechanisms, 2021, 117-
T1  - Efficient production of highly purified Late Embryogenesis Abundant (LEA) protein from Arabidopsis thaliana by recombinant DNA technology
EP  - 99
SP  - 98
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_3084
ER  - 

@conference{
author = "Markovic, Nemanja and Milić Komić, Sonja and Radosavljevic, Jelena and Pantelic, Ana and Kilibarda, Nataša and Vidović, Marija",
year = "2021",
abstract = "Late embryogenesis abundant (LEA) proteins are induced in cellular dehydration, such as freezing, drought, or desiccation. They can be involved in antioxidative defense, ion sequestration, and structural stabilization of both membranes and enzymes during freezing or drying, while by forming intracellular proteinaceous condensates they increase structural integrity and intracellular viscosity of cells during desiccation 1. The genome of the model plant Arabidopsis thaliana contains 51 genes encoding LEA proteins2. The majority of these LEA proteins (35%) belongs to Pfam LEA_4 (PF02987) family. In silico analysis suggested that these proteins are highly hydrophilic proteins with significant intrinsically disordered protein (IDP) properties. In order to evaluate structural properties and possible functions of LEA_4 protein family under different water content, a representative AtLEA25 protein (At2g42560, 635 aa), naturally located in the cytoplasm of seeds3 was obtained in Escherichia coli by recombinant DNA technology. Although this technology has been traditionally used to over-express and purify various globular proteins, numerous reports have shown that the IDPs, due to their structural plasicity are naturally highly susceptible to proteolytic cleavage. To conduct structural and functional studies we developed a robust method to produce highly purified (>95% pure) AtLEA25 with no detectable amount of protein breakdown products.",
publisher = "Belgrade : Serbian Biochemical Society",
journal = "Biochemical Insights into Molecular Mechanisms, 2021, 117-",
title = "Efficient production of highly purified Late Embryogenesis Abundant (LEA) protein from Arabidopsis thaliana by recombinant DNA technology",
pages = "99-98",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_3084"
}

Markovic, N., Milić Komić, S., Radosavljevic, J., Pantelic, A., Kilibarda, N.,& Vidović, M.. (2021). Efficient production of highly purified Late Embryogenesis Abundant (LEA) protein from Arabidopsis thaliana by recombinant DNA technology. in Biochemical Insights into Molecular Mechanisms, 2021, 117-
Belgrade : Serbian Biochemical Society., 98-99.
https://hdl.handle.net/21.15107/rcub_rimsi_3084

Markovic N, Milić Komić S, Radosavljevic J, Pantelic A, Kilibarda N, Vidović M. Efficient production of highly purified Late Embryogenesis Abundant (LEA) protein from Arabidopsis thaliana by recombinant DNA technology. in Biochemical Insights into Molecular Mechanisms, 2021, 117-. 2021;:98-99.
https://hdl.handle.net/21.15107/rcub_rimsi_3084 .

Markovic, Nemanja, Milić Komić, Sonja, Radosavljevic, Jelena, Pantelic, Ana, Kilibarda, Nataša, Vidović, Marija, "Efficient production of highly purified Late Embryogenesis Abundant (LEA) protein from Arabidopsis thaliana by recombinant DNA technology" in Biochemical Insights into Molecular Mechanisms, 2021, 117- (2021):98-99,
https://hdl.handle.net/21.15107/rcub_rimsi_3084 .

TY  - CONF
AU  - Pantelic, Ana
AU  - Stevanovic, Strahinja
AU  - Kilibarda, Nataša
AU  - Milić Komić, Sonja
AU  - Radosavljevic, Jelena
AU  - Vidović, Marija
PY  - 2021
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/3083
AB  - Endemic plant species, Ramonda serbica is a resurrection plant that can tolerate extreme dehydration (desiccation, loss of 95% of cellular water) even over months. The accumulation of late embryogenesis abundant proteins (LEAPs) is a crucial step in the mechanism of desiccation tolerance. The role of LEAPs is not completely resolved, but they are accepted as intrinsically disordered proteins (IDPs). Based on previously established de novo transcriptome database of R. serbica leaves we identify around 160 members of LEA gene family. Identified LEAPs were classified into six groups: LEA 1-5 and seed maturation proteins (SMPs) according to protein family (Pfam) database. Based on multiple sequence alignment, secondary structure prediction and 3D structure modeling, we conducted LEA protein structure analysis. We showed that more than 50% of identified LEAPs exhibited a high propensity to form α-helices. As predicted by several bioinformatic tools, more than 70% of identified LEAPs were found to be highly disordered. Thus, these proteins are predicted to be disordered in solution, but they acquire a secondary, predominantly α-helical structure during drying, in contrast to globular proteins, which most often causes the loss of structure upon dehydration. By using molecular dynamic simulations, we identified the most favorable conformations of representative LEAPs and we have studied conformational transitions driven by the water scarcity. Structural characterization of LEAPs is a key to understand their function and regulation of their intrinsic structural disorder-to-order transition during desiccation as a requirement for biological function, in order to promote development of new therapeutic strategies in neurodegenerative disorders, cell preservation technology and the improvement of crop drought tolerance.
PB  - Belgrade : Serbian Biochemical Society
C3  - Biochemical Insights into Molecular Mechanisms, 2021, 117-
T1  - Characterization of the late embryogenesis abundant (LEA) proteins family in hydrated and desiccated Ramonda serbica Panc. leaves
EP  - 118
SP  - 117
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_3083
ER  - 

@conference{
author = "Pantelic, Ana and Stevanovic, Strahinja and Kilibarda, Nataša and Milić Komić, Sonja and Radosavljevic, Jelena and Vidović, Marija",
year = "2021",
abstract = "Endemic plant species, Ramonda serbica is a resurrection plant that can tolerate extreme dehydration (desiccation, loss of 95% of cellular water) even over months. The accumulation of late embryogenesis abundant proteins (LEAPs) is a crucial step in the mechanism of desiccation tolerance. The role of LEAPs is not completely resolved, but they are accepted as intrinsically disordered proteins (IDPs). Based on previously established de novo transcriptome database of R. serbica leaves we identify around 160 members of LEA gene family. Identified LEAPs were classified into six groups: LEA 1-5 and seed maturation proteins (SMPs) according to protein family (Pfam) database. Based on multiple sequence alignment, secondary structure prediction and 3D structure modeling, we conducted LEA protein structure analysis. We showed that more than 50% of identified LEAPs exhibited a high propensity to form α-helices. As predicted by several bioinformatic tools, more than 70% of identified LEAPs were found to be highly disordered. Thus, these proteins are predicted to be disordered in solution, but they acquire a secondary, predominantly α-helical structure during drying, in contrast to globular proteins, which most often causes the loss of structure upon dehydration. By using molecular dynamic simulations, we identified the most favorable conformations of representative LEAPs and we have studied conformational transitions driven by the water scarcity. Structural characterization of LEAPs is a key to understand their function and regulation of their intrinsic structural disorder-to-order transition during desiccation as a requirement for biological function, in order to promote development of new therapeutic strategies in neurodegenerative disorders, cell preservation technology and the improvement of crop drought tolerance.",
publisher = "Belgrade : Serbian Biochemical Society",
journal = "Biochemical Insights into Molecular Mechanisms, 2021, 117-",
title = "Characterization of the late embryogenesis abundant (LEA) proteins family in hydrated and desiccated Ramonda serbica Panc. leaves",
pages = "118-117",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_3083"
}

Pantelic, A., Stevanovic, S., Kilibarda, N., Milić Komić, S., Radosavljevic, J.,& Vidović, M.. (2021). Characterization of the late embryogenesis abundant (LEA) proteins family in hydrated and desiccated Ramonda serbica Panc. leaves. in Biochemical Insights into Molecular Mechanisms, 2021, 117-
Belgrade : Serbian Biochemical Society., 117-118.
https://hdl.handle.net/21.15107/rcub_rimsi_3083

Pantelic A, Stevanovic S, Kilibarda N, Milić Komić S, Radosavljevic J, Vidović M. Characterization of the late embryogenesis abundant (LEA) proteins family in hydrated and desiccated Ramonda serbica Panc. leaves. in Biochemical Insights into Molecular Mechanisms, 2021, 117-. 2021;:117-118.
https://hdl.handle.net/21.15107/rcub_rimsi_3083 .

Pantelic, Ana, Stevanovic, Strahinja, Kilibarda, Nataša, Milić Komić, Sonja, Radosavljevic, Jelena, Vidović, Marija, "Characterization of the late embryogenesis abundant (LEA) proteins family in hydrated and desiccated Ramonda serbica Panc. leaves" in Biochemical Insights into Molecular Mechanisms, 2021, 117- (2021):117-118,
https://hdl.handle.net/21.15107/rcub_rimsi_3083 .

TY  - JOUR
AU  - Milenković, Ivana
AU  - Radotić, Ksenija
AU  - Despotović, Jovana
AU  - Loncarević, Branka
AU  - Ljesević, Marija
AU  - Spasić, Slađana
AU  - Nikolić, Aleksandra
AU  - Beskoski, Vladimir P.
PY  - 2021
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1423
AB  - Cerium oxide nanoparticles (nCeO(2)) have widespread applications, but they can be hazardous to the environment. Some reports indicate the toxic effect of nCeO(2) on tested animals, but literature data are mainly contradictory. Coating of nCeO(2) can improve their suspension stability and change their interaction with the environment, which can consequently decrease their toxic effects. Herein, the exopolysaccharides levan and pullulan, due to their high water solubility, biocompatibility, and ability to form film, were used to coat nCeO(2). Additionally, the monosaccharide glucose was used, since it is a common material for nanoparticle coating. This is the first study investigating the impact of carbohydrate-coated nCeO(2) in comparison to uncoated nCeO(2) using different model organisms. The aim of this study was to test the acute toxicity of carbohydrate-coated nCeO(2) on the bacterium Vibrio fischeri NRRL B-11177, the crustacean Daphnia magna, and zebrafish Danio rerio. The second aim was to investigate the effects of nCeO(2) on respiration in Daphnia magna which was performed for the first time. Finally, it was important to see the relation between Ce bioaccumulation in Daphnia magna and Danio rerio and other investigated parameters. Our results revealed that the coating decreased the toxicity of nCeO(2) on Vibrio fischeri. The coating of nCeO(2) did not affect the nanoparticles' accumulation/adsorption or mortality in Daphnia magna or Danio rerio. Monitoring of respiration in Daphnia magna revealed changes in CO2 production after exposure to coated nCeO(2), while the crustacean's O-2 consumption was not affected by any of the coated nCeO(2). In summary, this study revealed that, at 200 mg L-1 uncoated and carbohydrate-coated nCeO(2) are not toxic for the tested organisms, however, the CO2 production in Daphnia magna is different when they are treated with coated and uncoated nCeO(2). The highest production was in glucose and levan-coated nCeO(2) according to their highest suspension stability. Daphnia magna (D. magna), Danio rerio (D. rerio), Vibrio fischeri (V. fischeri)
PB  - Elsevier, Amsterdam
T2  - Aquatic Toxicology
T1  - Toxicity investigation of CeO2 nanoparticles coated with glucose and exopolysaccharides levan and pullulan on the bacterium Vibrio fischeri and aquatic organisms Daphnia magna and Danio rerio
VL  - 236
DO  - 10.1016/j.aquatox.2021.105867
ER  - 

@article{
author = "Milenković, Ivana and Radotić, Ksenija and Despotović, Jovana and Loncarević, Branka and Ljesević, Marija and Spasić, Slađana and Nikolić, Aleksandra and Beskoski, Vladimir P.",
year = "2021",
abstract = "Cerium oxide nanoparticles (nCeO(2)) have widespread applications, but they can be hazardous to the environment. Some reports indicate the toxic effect of nCeO(2) on tested animals, but literature data are mainly contradictory. Coating of nCeO(2) can improve their suspension stability and change their interaction with the environment, which can consequently decrease their toxic effects. Herein, the exopolysaccharides levan and pullulan, due to their high water solubility, biocompatibility, and ability to form film, were used to coat nCeO(2). Additionally, the monosaccharide glucose was used, since it is a common material for nanoparticle coating. This is the first study investigating the impact of carbohydrate-coated nCeO(2) in comparison to uncoated nCeO(2) using different model organisms. The aim of this study was to test the acute toxicity of carbohydrate-coated nCeO(2) on the bacterium Vibrio fischeri NRRL B-11177, the crustacean Daphnia magna, and zebrafish Danio rerio. The second aim was to investigate the effects of nCeO(2) on respiration in Daphnia magna which was performed for the first time. Finally, it was important to see the relation between Ce bioaccumulation in Daphnia magna and Danio rerio and other investigated parameters. Our results revealed that the coating decreased the toxicity of nCeO(2) on Vibrio fischeri. The coating of nCeO(2) did not affect the nanoparticles' accumulation/adsorption or mortality in Daphnia magna or Danio rerio. Monitoring of respiration in Daphnia magna revealed changes in CO2 production after exposure to coated nCeO(2), while the crustacean's O-2 consumption was not affected by any of the coated nCeO(2). In summary, this study revealed that, at 200 mg L-1 uncoated and carbohydrate-coated nCeO(2) are not toxic for the tested organisms, however, the CO2 production in Daphnia magna is different when they are treated with coated and uncoated nCeO(2). The highest production was in glucose and levan-coated nCeO(2) according to their highest suspension stability. Daphnia magna (D. magna), Danio rerio (D. rerio), Vibrio fischeri (V. fischeri)",
publisher = "Elsevier, Amsterdam",
journal = "Aquatic Toxicology",
title = "Toxicity investigation of CeO2 nanoparticles coated with glucose and exopolysaccharides levan and pullulan on the bacterium Vibrio fischeri and aquatic organisms Daphnia magna and Danio rerio",
volume = "236",
doi = "10.1016/j.aquatox.2021.105867"
}

Milenković, I., Radotić, K., Despotović, J., Loncarević, B., Ljesević, M., Spasić, S., Nikolić, A.,& Beskoski, V. P.. (2021). Toxicity investigation of CeO2 nanoparticles coated with glucose and exopolysaccharides levan and pullulan on the bacterium Vibrio fischeri and aquatic organisms Daphnia magna and Danio rerio. in Aquatic Toxicology
Elsevier, Amsterdam., 236.
https://doi.org/10.1016/j.aquatox.2021.105867

Milenković I, Radotić K, Despotović J, Loncarević B, Ljesević M, Spasić S, Nikolić A, Beskoski VP. Toxicity investigation of CeO2 nanoparticles coated with glucose and exopolysaccharides levan and pullulan on the bacterium Vibrio fischeri and aquatic organisms Daphnia magna and Danio rerio. in Aquatic Toxicology. 2021;236.
doi:10.1016/j.aquatox.2021.105867 .

Milenković, Ivana, Radotić, Ksenija, Despotović, Jovana, Loncarević, Branka, Ljesević, Marija, Spasić, Slađana, Nikolić, Aleksandra, Beskoski, Vladimir P., "Toxicity investigation of CeO2 nanoparticles coated with glucose and exopolysaccharides levan and pullulan on the bacterium Vibrio fischeri and aquatic organisms Daphnia magna and Danio rerio" in Aquatic Toxicology, 236 (2021),
https://doi.org/10.1016/j.aquatox.2021.105867 . .