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Identification of the duck egg white n-glycoproteome and insight into the course of biological evolution
journal contribution
posted on 2019-09-04, 00:00 authored by Y Meng, N Qiu, F Geng, Y Huo, H Sun, Russell KeastRussell Keast© 2019 American Chemical Society. Protein glycosylation is a ubiquitous posttranslational modification that modulates protein properties, thereby influencing bioactivities within a system. Duck egg white (DEW) proteins exhibit diverse biological properties compared with their chicken egg white (CEW) counterparts, which might be related to glycosylation. N-Glycoproteome analysis of DEW was conducted, and a total of 231 N-glycosites from 68 N-glycoproteins were identified. Gene ontology analysis was used to elucidate the biofunctions of DEW N-glycoproteins and compare them with those of CEW, which showed that the differences mostly involved molecular functions and biological processes. The biological functions of DEW N-glycoproteins were illuminated through bioinformatics analysis and comparison with CEW orthologues, which showed different allergenicities and antibacterial abilities. These divergences might be initiated by specific alterations in glycosylation, which can enhance the proteolysis resistance and protein steric hindrance. These results provide new insights for discovering the effects of N-glycosylation on biofunctions during the divergence of homologous proteins.
History
Journal
Journal of agricultural and food chemistryVolume
67Issue
35Pagination
9950 - 9957Publisher
ACS PublicationsLocation
Washington, D.C.Publisher DOI
ISSN
0021-8561eISSN
1520-5118Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2019, American Chemical SocietyUsage metrics
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No categories selectedKeywords
Science & TechnologyLife Sciences & BiomedicinePhysical SciencesAgriculture, MultidisciplinaryChemistry, AppliedFood Science & TechnologyAgricultureChemistryduck egg whiteN-glycoproteinsbioinformatic analysisbioactivitiesevolutionRIBOFLAVIN-BINDING PROTEINMASS-SPECTROMETRYANTIBACTERIAL ACTIVITYLINKED GLYCOSYLATIONESCHERICHIA-COLICHICKENLYSOZYMECANCERIGEELECTROPHORESIS
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