type	Journal Article
authors	Riegert AS, Young NM, Watson DC, Thoden JB, Holden HM
title	Structure of the external aldimine form of PglE, an aminotransferase required for N,N'-diacetylbacillosamine biosynthesis
journal	Protein Sci
Activity	2.6.1.34
Family	2.6.1.34.a
sel	selected
ui	26178292
year	(2015)
volume	24
number	10
pages	1609-16
keywords	N,N'-diacetylbacillosamine; N-glycosylation; aminotransferase; bacterial glycoproteins; pyridoxal 5'-phosphate
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.
last changed	2019/12/04 09:59