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@article{2305480, author = {Czubinski, Jaroslaw and Lattová, Erika and Zdráhal, Zbyněk and Strasser, Richard}, article_location = {UNITED STATES}, article_number = {19}, doi = {http://dx.doi.org/10.1021/acs.jafc.3c00727}, keywords = {lupin seed;gamma-conglutin;N-glycosylation;mass spectrometry;post-translational modification;thermal stability}, language = {eng}, issn = {0021-8561}, journal = {JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY}, title = {Characteristics of N-Glycosylation and Its Impact on the Molecular Behavior of Lupinus angustifolius ?-Conglutin}, url = {https://pubs.acs.org/doi/epdf/10.1021/acs.jafc.3c00727}, volume = {71}, year = {2023} }
TY - JOUR ID - 2305480 AU - Czubinski, Jaroslaw - Lattová, Erika - Zdráhal, Zbyněk - Strasser, Richard PY - 2023 TI - Characteristics of N-Glycosylation and Its Impact on the Molecular Behavior of Lupinus angustifolius ?-Conglutin JF - JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY VL - 71 IS - 19 SP - 7359-7369 EP - 7359-7369 PB - AMER CHEMICAL SOC SN - 00218561 KW - lupin seed;gamma-conglutin;N-glycosylation;mass spectrometry;post-translational modification;thermal stability UR - https://pubs.acs.org/doi/epdf/10.1021/acs.jafc.3c00727 N2 - a-Conglutin, a lupin seed protein, is an intriguing protein both in terms of the complexity of its molecular structure and a broad spectrum of unique health-promoting properties manifested in animal and human trials. Moreover, this protein is an evolutionary cornerstone whose physiological significance for the plant has not been determined yet. Herein, a comprehensive characterization of a-conglutin glycosylation is presented and includes the identification of the N-glycan-bearing site, the qualitative and quantitative composition of glycan-building saccharides, as well as the effect of oligosaccharide removal on structural and thermal stability. The obtained results indicate the presence of glycans belonging to different classes attached to the Asn98 residue. In addition, the detachment of the oligosaccharide significantly affects secondary structure composition, which disturbs the oligomerization process. The structural changes were also reflected in biophysical parameters, i.e., at a pH value of 4.5, an increase in a-conglutin thermal stability was observed for the deglycosylated monomeric form. Collectively, the presented results provide evidence of the high complexity of the post-translational maturation and suggest the possibility of a functional effect that glycosylation might have on a-conglutin structure integrity. ER -
CZUBINSKI, Jaroslaw, Erika LATTOVÁ, Zbyněk ZDRÁHAL a Richard STRASSER. Characteristics of N-Glycosylation and Its Impact on the Molecular Behavior of Lupinus angustifolius ?-Conglutin. \textit{JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY}. UNITED STATES: AMER CHEMICAL SOC, 2023, roč.~71, č.~19, s.~7359-7369. ISSN~0021-8561. Dostupné z: https://dx.doi.org/10.1021/acs.jafc.3c00727.
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