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An iterative glycosyltransferase EntS catalyzes transfer and extension of O- and S-linked monosaccharide in enterocin 96

IR@IMTECH: CSIR-Institute of Microbial Technology, Chandigarh

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Title An iterative glycosyltransferase EntS catalyzes transfer and extension of O- and S-linked monosaccharide in enterocin 96
 
Creator Nagar, R
Rao, Alka
 
Subject QR Microbiology
 
Description Glycosyltransferases are essential tools for in vitro-glycoengineering. Bacteria harbor an unexplored variety of protein glycosyltransferases. Here, we describe a peptide glycosyltransferase (EntS) encoded by ORF0417 of Enterococcus faecalis TX0104. EntS di-glycosylates linear peptide of enterocin 96- a known antibacterial, in vitro. It is capable of transferring as well as extending the glycan onto the peptide in an iterative sequential dissociative manner. It can catalyze multiple linkages: Glc/Gal(-O)Ser/Thr, Glc/Gal(-S)Cys and Glc/Gal(β)Glc/Gal(-O/S)Ser/Thr/Cys, in one pot. Using EntS generated glycovariants of enterocin 96 peptide, size and identity of the glycan are found to influence bioactivity of the peptide. The study identifies EntS as an enzyme worth pursuing, for in vitro peptide glycoengineering.
 
Publisher Oxford Academic
 
Date 2017
 
Type Article
PeerReviewed
 
Relation http://dx.doi.org/10.1093/glycob/cwx042
http://crdd.osdd.net/open/2076/
 
Identifier Nagar, R and Rao, Alka (2017) An iterative glycosyltransferase EntS catalyzes transfer and extension of O- and S-linked monosaccharide in enterocin 96. Glycobiology, 27 (8). pp. 766-776. ISSN 0959-6658