Abstract：
:Mass spectrometry (MS)-based strategies and related software tools using glycan mass lists have greatly facilitated the analysis of intact glycopeptides. Most glycan mass lists are derived from normal glycans of mammals and contain limited monosaccharides, which has significantly hindered high throughput studies of unusual glycosylation events observed in other species. In this work, an integrated strategy was developed for the construction of a species-specific glycan mass list from glycan structure databases and published papers. We developed a computational tool called LibGlycan, which could process the different formats of glycans. Then, the software tool generated a glycan library that contained the monoisotope mass, average mass, isotope distribution, and glycan mass list for input into Byonic software. This strategy was applied to analyze the N-glycosylation of rice roots and O-glycosylation of Acinetobacter baumannii ATCC17978, leading to the identification of 296 and 145 intact glycopeptides respectively. Combined, these results show that this strategy is a robust computational approach for the determination of glycan diversity within different complex biological systems.
journal_name
Talantajournal_title
Talantaauthors
Meng X,Li L,Wang Xdoi
10.1016/j.talanta.2021.122626keywords:
["Byonic","GlyTouCan","Glycan library","Glycoproteomics","NanoLC-MS\/MS","Rice roots"]subject
Has Abstractpub_date
2021-11-01 00:00:00pages
122626eissn
0039-9140issn
1873-3573pii
S0039-9140(21)00547-6journal_volume
234pub_type
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