Protein Domain : IPR005882

Type:  Family Name:  Bifunctional UDP-N-acetylglucosamine pyrophosphorylase/glucosamine-1-phosphate N-acetyltransferase
Description:  N-Acetylglucosamine-1-PO(4) uridyltransferase (GlmU, ) is a trimeric bifunctional enzyme that catalyzes the last two sequential reactions in the de novo biosynthetic pathway for UDP-GlcNAc.The X-ray crystal structure of Escherichia coliGlmU in complex with UDP-GlcNAc and CoA has been determined to 2.1 A resolution and reveals a two-domain architecture that is responsible for these two reactions []. The C-terminal domain is responsible for the CoA-dependent acetylation of Glc-1-PO(4) to GlcNAc-1-PO(4) and displays the longest left-handed parallel beta-helix observed to date. The acetyltransferase active site defined by the binding site for CoA makes use of residues from all three subunits and is positioned beneath an open cavity large enough to accommodate the Glc-1-PO(4) acetyl acceptor. The N-terminal domain catalyzes uridyl transfer from UTP to GlcNAc-1-PO(4) to form the final products UDP-GlcNAc and pyrophosphate. This domain is composed of a central seven-stranded beta-sheet surrounded by sixalpha-helices in a Rossmann fold-like topology. Short Name:  Bifunctional_GlmU
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0 Child Features

3 Contains

DB identifier Type Name
IPR011004 Domain Trimeric LpxA-like
IPR005835 Domain Nucleotidyl transferase domain
IPR018357 Conserved_site Hexapeptide transferase, conserved site

2 Cross Referencess

Identifier
TIGR01173
MF_01631

0 Found In

7 GO Annotations

GO Term Gene Name
GO:0000287 IPR005882
GO:0003977 IPR005882
GO:0019134 IPR005882
GO:0000902 IPR005882
GO:0009103 IPR005882
GO:0009252 IPR005882
GO:0005737 IPR005882

7 Ontology Annotations

GO Term Gene Name
GO:0000287 IPR005882
GO:0003977 IPR005882
GO:0019134 IPR005882
GO:0000902 IPR005882
GO:0009103 IPR005882
GO:0009252 IPR005882
GO:0005737 IPR005882

0 Parent Features

2 Proteins

DB identifier UniProt Accession Secondary Identifier Organism Name Length
Araha.11756s0284.1.p PAC:28856411 Arabidopsis halleri 456  
Araha.11756s0284.1.p PAC:28856411 Arabidopsis halleri 456  

1 Publications

First Author Title Year Journal Volume Pages PubMed ID
            11329257