Structure of the external aldimine form of PglE, an aminotransferase required for N,N'-diacetylbacillosamine biosynthesis

From National Research Council Canada

DOIResolve DOI: http://doi.org/10.1002/pro.2745
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Name affiliation
  1. National Research Council Canada. Human Health Therapeutics
TypeArticle
Journal titleProtein Science
ISSN0961-8368
Volume24
Issue10
Pages1609–1616; # of pages: 8
Abstract
N,N'-diacetylbacillosamine is a novel sugar that plays a key role in bacterial glycosylation. Three enzymes are required for its biosynthesis in Campylobacter jejuni starting from UDP-GlcNAc. The focus of this investigation, PglE, catalyzes the second step in the pathway. It is a PLP-dependent aminotransferase that converts UDP-2-acetamido-4-keto-2,4,6-trideoxy-d-glucose to UDP-2-acetamido-4-amino-2,4,6-trideoxy-d-glucose. For this investigation, the structure of PglE in complex with an external aldimine was determined to a nominal resolution of 2.0 Å. A comparison of its structure with those of other sugar aminotransferases reveals a remarkable difference in the manner by which PglE accommodates its nucleotide-linked sugar substrate.
Publication date
PublisherWiley
LanguageEnglish
Peer reviewedYes
NPARC number21277361
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Record modified2016-05-09
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