IUBMB Enzyme Nomenclature


Accepted name: histidinol-phosphate transaminase

Reaction: L-histidinol phosphate + 2-oxoglutarate = 3-(imidazol-4-yl)-2-oxopropyl phosphate + L-glutamate

For diagram click here.

Other name(s): imidazolylacetolphosphate transaminase; glutamic-imidazoleacetol phosphate transaminase; histidinol phosphate aminotransferase; imidazoleacetol phosphate transaminase; L-histidinol phosphate aminotransferase; histidine:imidazoleacetol phosphate transaminase; IAP transaminase; imidazolylacetolphosphate aminotransferase

Systematic name: L-histidinol-phosphate:2-oxoglutarate aminotransferase

Comments: A pyridoxal-phosphate protein.

Links to other databases: BRENDA, EXPASY, GTD, KEGG, Metacyc, PDB, CAS registry number: 9032-98-8


1. Ames, B.N. and Horecker, B.L. The biosynthesis of histidine: imidazoleacetol phosphate transaminase. J. Biol. Chem. 220 (1956) 113-128.

2. Martin, R.G. and Goldberger, R.F. Imidazolylacetolphosphate:L-glutamate aminotransferase. Purification and properties. J. Biol. Chem. 242 (1963) 1168-1174.

[EC created 1961]

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