IUBMB Enzyme Nomenclature


Accepted name: L-glutamine-phosphate cytidylyltransferase

Reaction: CTP + N5-phospho-L-glutamine = diphosphate + N5-(cytidine 5'-diphosphoramidyl)-L-glutamine

Systematic name: CTP:phosphoglutamine cytidylyltransferase

Comments: The enzyme, characterized from the bacterium Campylobacter jejuni, is involved in formation of a unique O-methyl phosphoramidate modification on specific sugar residues within the bacterium's capsular polysaccharides.

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number:


1. Taylor, Z.W., Brown, H.A., Holden, H.M. and Raushel, F.M. Biosynthesis of nucleoside diphosphoramidates in Campylobacter jejuni. Biochemistry 56 (2017) 6079-6082. [PMID: 29023101]

[EC created 2018]

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