The Enzyme Database

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Accepted name: UDP-N-acetylbacillosamine N-acetyltransferase
Reaction: acetyl-CoA + UDP-N-acetylbacillosamine = CoA + UDP-N,N′-diacetylbacillosamine
For diagram of legionaminic acid biosynthesis, click here
Glossary: UDP-N-acetylbacillosamine = UDP-4-amino-4,6-dideoxy-N-acetyl-α-D-glucosamine
UDP-N,N′-diacetylbacillosamine = UDP-2,4-diacetamido-2,4,6-trideoxy-α-D-glucopyranose
Other name(s): UDP-4-amino-4,6-dideoxy-N-acetyl-α-D-glucosamine N-acetyltransferase; pglD (gene name)
Systematic name: acetyl-CoA:UDP-4-amino-4,6-dideoxy-N-acetyl-α-D-glucosamine N-acetyltransferase
Comments: The product, UDP-N,N′-diacetylbacillosamine, is an intermediate in protein glycosylation pathways in several bacterial species, including N-linked glycosylation of certain L-asparagine residues in Campylobacter species [1,2] and O-linked glycosylation of certain L-serine residues in Neisseria species [3].
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Olivier, N.B., Chen, M.M., Behr, J.R. and Imperiali, B. In vitro biosynthesis of UDP-N,N′-diacetylbacillosamine by enzymes of the Campylobacter jejuni general protein glycosylation system. Biochemistry 45 (2006) 13659–13669. [PMID: 17087520]
2.  Rangarajan, E.S., Ruane, K.M., Sulea, T., Watson, D.C., Proteau, A., Leclerc, S., Cygler, M., Matte, A. and Young, N.M. Structure and active site residues of PglD, an N-acetyltransferase from the bacillosamine synthetic pathway required for N-glycan synthesis in Campylobacter jejuni. Biochemistry 47 (2008) 1827–1836. [PMID: 18198901]
3.  Hartley, M.D., Morrison, M.J., Aas, F.E., Borud, B., Koomey, M. and Imperiali, B. Biochemical characterization of the O-linked glycosylation pathway in Neisseria gonorrhoeae responsible for biosynthesis of protein glycans containing N,N′-diacetylbacillosamine. Biochemistry 50 (2011) 4936–4948. [PMID: 21542610]
[EC created 2012, modified 2013]

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