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- W1997401532 abstract "Bacterial interactions with the environment- and/or host largely depend on the bacterial glycome. The specificities of a bacterial glycome are largely determined by glycosyltransferases (GTs), the enzymes involved in transferring sugar moieties from an activated donor to a specific substrate. Of these GTs their coding regions, but mainly also their substrate specificity are still largely unannotated as most sequence-based annotation flows suffer from the lack of characterized sequence motifs that can aid in the prediction of the substrate specificity. In this work, we developed an analysis flow that uses sequence-based strategies to predict novel GTs, but also exploits a network-based approach to infer the putative substrate classes of these predicted GTs. Our analysis flow was benchmarked with the well-documented GT-repertoire of Campylobacter jejuni NCTC 11168 and applied to the probiotic model Lactobacillus rhamnosus GG to expand our insights in the glycosylation potential of this bacterium. In L. rhamnosus GG we could predict 48 GTs of which eight were not previously reported. For at least 20 of these GTs a substrate relation was inferred. We confirmed through experimental validation our prediction of WelI acting upstream of WelE in the biosynthesis of exopolysaccharides. We further hypothesize to have identified in L. rhamnosus GG the yet undiscovered genes involved in the biosynthesis of glucose-rich glycans and novel GTs involved in the glycosylation of proteins. Interestingly, we also predict GTs with well-known functions in peptidoglycan synthesis to also play a role in protein glycosylation." @default.
- W1997401532 created "2016-06-24" @default.
- W1997401532 creator A5004526177 @default.
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- W1997401532 date "2014-05-08" @default.
- W1997401532 modified "2023-10-09" @default.
- W1997401532 title "A network-based approach to identify substrate classes of bacterial glycosyltransferases" @default.
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- W1997401532 doi "https://doi.org/10.1186/1471-2164-15-349" @default.
- W1997401532 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4039749" @default.
- W1997401532 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/24885406" @default.
- W1997401532 hasPublicationYear "2014" @default.
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