The Enzyme Database

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Accepted name: [protein-PII] uridylyltransferase
Reaction: UTP + [protein-PII] = diphosphate + uridylyl-[protein-PII]
Other name(s): PII uridylyl-transferase; uridyl removing enzyme
Systematic name: UTP:[protein-PII] uridylyltransferase
Comments: The enzyme uridylylates and de-uridylylates the small trimeric protein PII. The enzymes from Escherichia coli and Salmonella typhimurium have been wrongly identified, in some databases, as EC (UDP-glucose—hexose-1-phosphate uridylyltransferase), from which it differs greatly in both reaction catalysed and sequence.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 57657-57-5
1.  Garcia, E., Rhee, S.G. Cascade control of Escherichia coli glutamate synthetase. Purification and properties of PII uridylyltransferase and uridylyl-removing enzyme. J. Biol. Chem. 258 (1983) 2246–2253. [PMID: 6130097]
2.  Van Heeswijk, W., Rabenberg, M., Westerhoff, H., Kahn, D. The genes of the glutamate synthetase adenylylation cascade are not regulated by nitrogen in Escherichia coli. Mol. Microbiol. 9 (1993) 443–457. [PMID: 8412694]
[EC created 1999]

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