Robajac, Dragana B.

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orcid::0000-0002-6423-4645
  • Robajac, Dragana B. (4)
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Author's Bibliography

Characterisation and the effects of bilirubin binding to human fibrinogen

Gligorijević, Nikola; Minić, Simeon L.; Robajac, Dragana B.; Nikolić, Milan; Ćirković-Veličković, Tanja; Nedić, Olgica

(2019)

TY  - JOUR
AU  - Gligorijević, Nikola
AU  - Minić, Simeon L.
AU  - Robajac, Dragana B.
AU  - Nikolić, Milan
AU  - Ćirković-Veličković, Tanja
AU  - Nedić, Olgica
PY  - 2019
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2824
AB  - Fibrinogen, a protein involved in blood coagulation, is very susceptible to oxidation. Oxidation alters its function and usually makes it more thrombogenic. Bilirubin, an end-product of the haem degradation in vertebrates, is known for its antioxidant properties. The present paper describes interaction between fibrinogen and bilirubin, and the influence of bilirubin on the formation of fibrin and protection against oxidation. The binding constant of 4.5 × 104 M−1 was determined for the fibrinogen/bilirubin complex at 37 °C. There is no change in secondary and tertiary structure of fibrinogen or its thermal stability upon bilirubin binding. The binding site of fibrinogen is not stereospecific for bilirubin and is able to accommodate both bilirubin conformers. A change in absorption maximum of bilirubin occurs upon its interaction with fibrinogen, suggesting an alteration in the conformation of bilirubin to the more cyclic one. Bilirubin exerts antioxidant effect on fibrinogen, preventing its carbonylation and aggregation. The presence of bilirubin induces the formation of fibrin with thicker fibres, as assessed by the coagulation assay. Fibrinogen and bilirubin interact at physiological concentrations, bilirubin may act as an antioxidant for fibrinogen and may modulate an important event in haemostasis, which altogether suggests possible physiological relevance of this interaction.
T2  - International Journal of Biological Macromolecules
T1  - Characterisation and the effects of bilirubin binding to human fibrinogen
VL  - 128
SP  - 74
EP  - 79
DO  - 10.1016/j.ijbiomac.2019.01.124
ER  - 
@article{
author = "Gligorijević, Nikola and Minić, Simeon L. and Robajac, Dragana B. and Nikolić, Milan and Ćirković-Veličković, Tanja and Nedić, Olgica",
year = "2019",
abstract = "Fibrinogen, a protein involved in blood coagulation, is very susceptible to oxidation. Oxidation alters its function and usually makes it more thrombogenic. Bilirubin, an end-product of the haem degradation in vertebrates, is known for its antioxidant properties. The present paper describes interaction between fibrinogen and bilirubin, and the influence of bilirubin on the formation of fibrin and protection against oxidation. The binding constant of 4.5 × 104 M−1 was determined for the fibrinogen/bilirubin complex at 37 °C. There is no change in secondary and tertiary structure of fibrinogen or its thermal stability upon bilirubin binding. The binding site of fibrinogen is not stereospecific for bilirubin and is able to accommodate both bilirubin conformers. A change in absorption maximum of bilirubin occurs upon its interaction with fibrinogen, suggesting an alteration in the conformation of bilirubin to the more cyclic one. Bilirubin exerts antioxidant effect on fibrinogen, preventing its carbonylation and aggregation. The presence of bilirubin induces the formation of fibrin with thicker fibres, as assessed by the coagulation assay. Fibrinogen and bilirubin interact at physiological concentrations, bilirubin may act as an antioxidant for fibrinogen and may modulate an important event in haemostasis, which altogether suggests possible physiological relevance of this interaction.",
journal = "International Journal of Biological Macromolecules",
title = "Characterisation and the effects of bilirubin binding to human fibrinogen",
volume = "128",
pages = "74-79",
doi = "10.1016/j.ijbiomac.2019.01.124"
}
Gligorijević, N., Minić, S. L., Robajac, D. B., Nikolić, M., Ćirković-Veličković, T.,& Nedić, O.. (2019). Characterisation and the effects of bilirubin binding to human fibrinogen. in International Journal of Biological Macromolecules, 128, 74-79.
https://doi.org/10.1016/j.ijbiomac.2019.01.124
Gligorijević N, Minić SL, Robajac DB, Nikolić M, Ćirković-Veličković T, Nedić O. Characterisation and the effects of bilirubin binding to human fibrinogen. in International Journal of Biological Macromolecules. 2019;128:74-79.
doi:10.1016/j.ijbiomac.2019.01.124 .
Gligorijević, Nikola, Minić, Simeon L., Robajac, Dragana B., Nikolić, Milan, Ćirković-Veličković, Tanja, Nedić, Olgica, "Characterisation and the effects of bilirubin binding to human fibrinogen" in International Journal of Biological Macromolecules, 128 (2019):74-79,
https://doi.org/10.1016/j.ijbiomac.2019.01.124 . .
14
6
14
13

Characterisation and the effects of bilirubin binding to human fibrinogen

Gligorijević, Nikola; Minić, Simeon L.; Robajac, Dragana B.; Nikolić, Milan; Ćirković-Veličković, Tanja; Nedić, Olgica

(2019)

TY  - JOUR
AU  - Gligorijević, Nikola
AU  - Minić, Simeon L.
AU  - Robajac, Dragana B.
AU  - Nikolić, Milan
AU  - Ćirković-Veličković, Tanja
AU  - Nedić, Olgica
PY  - 2019
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2825
AB  - Fibrinogen, a protein involved in blood coagulation, is very susceptible to oxidation. Oxidation alters its function and usually makes it more thrombogenic. Bilirubin, an end-product of the haem degradation in vertebrates, is known for its antioxidant properties. The present paper describes interaction between fibrinogen and bilirubin, and the influence of bilirubin on the formation of fibrin and protection against oxidation. The binding constant of 4.5 × 104 M−1 was determined for the fibrinogen/bilirubin complex at 37 °C. There is no change in secondary and tertiary structure of fibrinogen or its thermal stability upon bilirubin binding. The binding site of fibrinogen is not stereospecific for bilirubin and is able to accommodate both bilirubin conformers. A change in absorption maximum of bilirubin occurs upon its interaction with fibrinogen, suggesting an alteration in the conformation of bilirubin to the more cyclic one. Bilirubin exerts antioxidant effect on fibrinogen, preventing its carbonylation and aggregation. The presence of bilirubin induces the formation of fibrin with thicker fibres, as assessed by the coagulation assay. Fibrinogen and bilirubin interact at physiological concentrations, bilirubin may act as an antioxidant for fibrinogen and may modulate an important event in haemostasis, which altogether suggests possible physiological relevance of this interaction.
T2  - International Journal of Biological Macromolecules
T1  - Characterisation and the effects of bilirubin binding to human fibrinogen
VL  - 128
SP  - 74
EP  - 79
DO  - 10.1016/j.ijbiomac.2019.01.124
ER  - 
@article{
author = "Gligorijević, Nikola and Minić, Simeon L. and Robajac, Dragana B. and Nikolić, Milan and Ćirković-Veličković, Tanja and Nedić, Olgica",
year = "2019",
abstract = "Fibrinogen, a protein involved in blood coagulation, is very susceptible to oxidation. Oxidation alters its function and usually makes it more thrombogenic. Bilirubin, an end-product of the haem degradation in vertebrates, is known for its antioxidant properties. The present paper describes interaction between fibrinogen and bilirubin, and the influence of bilirubin on the formation of fibrin and protection against oxidation. The binding constant of 4.5 × 104 M−1 was determined for the fibrinogen/bilirubin complex at 37 °C. There is no change in secondary and tertiary structure of fibrinogen or its thermal stability upon bilirubin binding. The binding site of fibrinogen is not stereospecific for bilirubin and is able to accommodate both bilirubin conformers. A change in absorption maximum of bilirubin occurs upon its interaction with fibrinogen, suggesting an alteration in the conformation of bilirubin to the more cyclic one. Bilirubin exerts antioxidant effect on fibrinogen, preventing its carbonylation and aggregation. The presence of bilirubin induces the formation of fibrin with thicker fibres, as assessed by the coagulation assay. Fibrinogen and bilirubin interact at physiological concentrations, bilirubin may act as an antioxidant for fibrinogen and may modulate an important event in haemostasis, which altogether suggests possible physiological relevance of this interaction.",
journal = "International Journal of Biological Macromolecules",
title = "Characterisation and the effects of bilirubin binding to human fibrinogen",
volume = "128",
pages = "74-79",
doi = "10.1016/j.ijbiomac.2019.01.124"
}
Gligorijević, N., Minić, S. L., Robajac, D. B., Nikolić, M., Ćirković-Veličković, T.,& Nedić, O.. (2019). Characterisation and the effects of bilirubin binding to human fibrinogen. in International Journal of Biological Macromolecules, 128, 74-79.
https://doi.org/10.1016/j.ijbiomac.2019.01.124
Gligorijević N, Minić SL, Robajac DB, Nikolić M, Ćirković-Veličković T, Nedić O. Characterisation and the effects of bilirubin binding to human fibrinogen. in International Journal of Biological Macromolecules. 2019;128:74-79.
doi:10.1016/j.ijbiomac.2019.01.124 .
Gligorijević, Nikola, Minić, Simeon L., Robajac, Dragana B., Nikolić, Milan, Ćirković-Veličković, Tanja, Nedić, Olgica, "Characterisation and the effects of bilirubin binding to human fibrinogen" in International Journal of Biological Macromolecules, 128 (2019):74-79,
https://doi.org/10.1016/j.ijbiomac.2019.01.124 . .
14
6
14
13

Supplementary data for the article: Gligorijević, N.; Minić, S. L.; Robajac, D. B.; Nikolić, M.; Ćirković-Veličković, T.; Nedić, O. Characterisation and the Effects of Bilirubin Binding to Human Fibrinogen. International Journal of Biological Macromolecules 2019, 128, 74–79. https://doi.org/10.1016/j.ijbiomac.2019.01.124

Gligorijević, Nikola; Minić, Simeon L.; Robajac, Dragana B.; Nikolić, Milan; Ćirković-Veličković, Tanja; Nedić, Olgica

(2019)

TY  - DATA
AU  - Gligorijević, Nikola
AU  - Minić, Simeon L.
AU  - Robajac, Dragana B.
AU  - Nikolić, Milan
AU  - Ćirković-Veličković, Tanja
AU  - Nedić, Olgica
PY  - 2019
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2937
T2  - International Journal of Biological Macromolecules
T1  - Supplementary data for the article: Gligorijević, N.; Minić, S. L.; Robajac, D. B.; Nikolić, M.; Ćirković-Veličković, T.; Nedić, O. Characterisation and the Effects of Bilirubin Binding to Human Fibrinogen. International Journal of Biological Macromolecules 2019, 128, 74–79. https://doi.org/10.1016/j.ijbiomac.2019.01.124
UR  - https://hdl.handle.net/21.15107/rcub_cherry_2937
ER  - 
@misc{
author = "Gligorijević, Nikola and Minić, Simeon L. and Robajac, Dragana B. and Nikolić, Milan and Ćirković-Veličković, Tanja and Nedić, Olgica",
year = "2019",
journal = "International Journal of Biological Macromolecules",
title = "Supplementary data for the article: Gligorijević, N.; Minić, S. L.; Robajac, D. B.; Nikolić, M.; Ćirković-Veličković, T.; Nedić, O. Characterisation and the Effects of Bilirubin Binding to Human Fibrinogen. International Journal of Biological Macromolecules 2019, 128, 74–79. https://doi.org/10.1016/j.ijbiomac.2019.01.124",
url = "https://hdl.handle.net/21.15107/rcub_cherry_2937"
}
Gligorijević, N., Minić, S. L., Robajac, D. B., Nikolić, M., Ćirković-Veličković, T.,& Nedić, O.. (2019). Supplementary data for the article: Gligorijević, N.; Minić, S. L.; Robajac, D. B.; Nikolić, M.; Ćirković-Veličković, T.; Nedić, O. Characterisation and the Effects of Bilirubin Binding to Human Fibrinogen. International Journal of Biological Macromolecules 2019, 128, 74–79. https://doi.org/10.1016/j.ijbiomac.2019.01.124. in International Journal of Biological Macromolecules.
https://hdl.handle.net/21.15107/rcub_cherry_2937
Gligorijević N, Minić SL, Robajac DB, Nikolić M, Ćirković-Veličković T, Nedić O. Supplementary data for the article: Gligorijević, N.; Minić, S. L.; Robajac, D. B.; Nikolić, M.; Ćirković-Veličković, T.; Nedić, O. Characterisation and the Effects of Bilirubin Binding to Human Fibrinogen. International Journal of Biological Macromolecules 2019, 128, 74–79. https://doi.org/10.1016/j.ijbiomac.2019.01.124. in International Journal of Biological Macromolecules. 2019;.
https://hdl.handle.net/21.15107/rcub_cherry_2937 .
Gligorijević, Nikola, Minić, Simeon L., Robajac, Dragana B., Nikolić, Milan, Ćirković-Veličković, Tanja, Nedić, Olgica, "Supplementary data for the article: Gligorijević, N.; Minić, S. L.; Robajac, D. B.; Nikolić, M.; Ćirković-Veličković, T.; Nedić, O. Characterisation and the Effects of Bilirubin Binding to Human Fibrinogen. International Journal of Biological Macromolecules 2019, 128, 74–79. https://doi.org/10.1016/j.ijbiomac.2019.01.124" in International Journal of Biological Macromolecules (2019),
https://hdl.handle.net/21.15107/rcub_cherry_2937 .

N-glikom membranskih proteina i receptora za insulin i faktore rasta slične insulinu, izolovanih iz humane placente u različitim (pato)fiziološkim stanjima

Robajac, Dragana B.

(Универзитет у Београду, Хемијски факултет, 2016)

TY  - THES
AU  - Robajac, Dragana B.
PY  - 2016
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=3653
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:12455/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=48133135
UR  - http://nardus.mpn.gov.rs/123456789/6381
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2699
AB  - Funkcije membranskih proteina su brojne: međućelijska komunikacija, adhezija, signalna transdukcija. Većina membranskih proteina je glikozilovana i N-glikani imaju važnu ulogu u formiranju trodimenzionalne strukture membranskih proteina, kao i u ispoljavanju njihove funkcije. Receptori za insulin (IR) i faktor rasta sličan insulinu tip 1 (IGF1R) su transmembranske tirozin-kinaze sa visokim stepenom homologije (u nekim domenima čak i 80%). Familija IGF receptora, pored IR i IGF1R, uključuje i receptor za faktore rasta slične insulinu tip 2 (IGF2R). Sva tri receptora (IR, IGF1R i IGF2R) su glikozilovani i obilno prisutni u placenti, gde imaju važne uloge u njenom razvoju i funkcionisanju.Placenta raste i razvija se da bi ispunila različite potrebe fetusa, pa se struktura i funkcija placente menjaju tokom gestacije. Znajući da su proteini odgovorni za biološke funkcije placente pretpostavljeno je da tokom gestacije može doći i do promene u sadržaju različitih tipova N-glikana prisutnih na membranskim proteinima. U ovoj tezi analizirani su tipovi N-glikana koji se mogu naći u sastavu membranskih glikoproteina, odnosno membranski N-glikom proteina humane placente. Ispitana je podložnost membranskog N-glikoma individualnim varijacijama i uticaju starosti majke/trudnice, kao i uticaj gestacije na membranski N-glikom. Znajući da je izmenjena glikozilacija često povezana sa izmenjenom funkcijom, kao i da izmenjena funkcija jednog ili više proteina može biti uzrok bolesti, ispitane su potencijalne promene membranskog N-glikoma u patološkim trudnoćama (kod preeklampsije) i trudnoćama komplikovanim patologijom majki (dijabetes). Uporedo je ispitan i uticaj starosti, gestacije i patologije na tip i zastupljenost različitih N-glikana koji ulaze u sastav receptora IGF sistema. Cilj je bio da se ispita da li promene na ukupnim membranskim proteinima (na N-glikomu) prate promene N-glikana prisutnih na pojedinačnim membranskim glikoproteinima važnim za rast i funkcionisanje placente...
PB  - Универзитет у Београду, Хемијски факултет
T2  - Универзитет у Београду
T1  - N-glikom membranskih proteina i receptora za insulin i faktore rasta slične insulinu, izolovanih iz humane placente u različitim (pato)fiziološkim stanjima
T1  - N-glycome of membrane proteins and receptors for insulin and insulin-like growth factors, isolated from human placenta at different (patho)physiological states
UR  - https://hdl.handle.net/21.15107/rcub_nardus_6381
ER  - 
@phdthesis{
author = "Robajac, Dragana B.",
year = "2016",
abstract = "Funkcije membranskih proteina su brojne: međućelijska komunikacija, adhezija, signalna transdukcija. Većina membranskih proteina je glikozilovana i N-glikani imaju važnu ulogu u formiranju trodimenzionalne strukture membranskih proteina, kao i u ispoljavanju njihove funkcije. Receptori za insulin (IR) i faktor rasta sličan insulinu tip 1 (IGF1R) su transmembranske tirozin-kinaze sa visokim stepenom homologije (u nekim domenima čak i 80%). Familija IGF receptora, pored IR i IGF1R, uključuje i receptor za faktore rasta slične insulinu tip 2 (IGF2R). Sva tri receptora (IR, IGF1R i IGF2R) su glikozilovani i obilno prisutni u placenti, gde imaju važne uloge u njenom razvoju i funkcionisanju.Placenta raste i razvija se da bi ispunila različite potrebe fetusa, pa se struktura i funkcija placente menjaju tokom gestacije. Znajući da su proteini odgovorni za biološke funkcije placente pretpostavljeno je da tokom gestacije može doći i do promene u sadržaju različitih tipova N-glikana prisutnih na membranskim proteinima. U ovoj tezi analizirani su tipovi N-glikana koji se mogu naći u sastavu membranskih glikoproteina, odnosno membranski N-glikom proteina humane placente. Ispitana je podložnost membranskog N-glikoma individualnim varijacijama i uticaju starosti majke/trudnice, kao i uticaj gestacije na membranski N-glikom. Znajući da je izmenjena glikozilacija često povezana sa izmenjenom funkcijom, kao i da izmenjena funkcija jednog ili više proteina može biti uzrok bolesti, ispitane su potencijalne promene membranskog N-glikoma u patološkim trudnoćama (kod preeklampsije) i trudnoćama komplikovanim patologijom majki (dijabetes). Uporedo je ispitan i uticaj starosti, gestacije i patologije na tip i zastupljenost različitih N-glikana koji ulaze u sastav receptora IGF sistema. Cilj je bio da se ispita da li promene na ukupnim membranskim proteinima (na N-glikomu) prate promene N-glikana prisutnih na pojedinačnim membranskim glikoproteinima važnim za rast i funkcionisanje placente...",
publisher = "Универзитет у Београду, Хемијски факултет",
journal = "Универзитет у Београду",
title = "N-glikom membranskih proteina i receptora za insulin i faktore rasta slične insulinu, izolovanih iz humane placente u različitim (pato)fiziološkim stanjima, N-glycome of membrane proteins and receptors for insulin and insulin-like growth factors, isolated from human placenta at different (patho)physiological states",
url = "https://hdl.handle.net/21.15107/rcub_nardus_6381"
}
Robajac, D. B.. (2016). N-glikom membranskih proteina i receptora za insulin i faktore rasta slične insulinu, izolovanih iz humane placente u različitim (pato)fiziološkim stanjima. in Универзитет у Београду
Универзитет у Београду, Хемијски факултет..
https://hdl.handle.net/21.15107/rcub_nardus_6381
Robajac DB. N-glikom membranskih proteina i receptora za insulin i faktore rasta slične insulinu, izolovanih iz humane placente u različitim (pato)fiziološkim stanjima. in Универзитет у Београду. 2016;.
https://hdl.handle.net/21.15107/rcub_nardus_6381 .
Robajac, Dragana B., "N-glikom membranskih proteina i receptora za insulin i faktore rasta slične insulinu, izolovanih iz humane placente u različitim (pato)fiziološkim stanjima" in Универзитет у Београду (2016),
https://hdl.handle.net/21.15107/rcub_nardus_6381 .