The Enzyme Database

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Accepted name: diaminohydroxyphosphoribosylaminopyrimidine deaminase
Reaction: 2,5-diamino-6-hydroxy-4-(5-phospho-D-ribosylamino)pyrimidine + H2O = 5-amino-6-(5-phospho-D-ribosylamino)uracil + NH3
For diagram of riboflavin biosynthesis (early stages), click here
Systematic name: 2,5-diamino-6-hydroxy-4-(5-phospho-D-ribosylamino)pyrimidine 2-aminohydrolase
Comments: The substrate is the product of EC GTP cyclohydrolase II.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 68994-19-4
1.  Burrows, R.B. and Brown, G.M. Presence of Escherichia coli of a deaminase and a reductase involved in biosynthesis of riboflavin. J. Bacteriol. 136 (1978) 657–667. [PMID: 30756]
[EC created 1984, modified 2011]

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