EC - Histidinol-phosphate transaminase

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IntEnz Enzyme Nomenclature


Accepted name:
histidinol-phosphate transaminase
Other names:
L-histidinol phosphate aminotransferase
IAP transaminase
glutamic-imidazoleacetol phosphate transaminase
histidine:imidazoleacetol phosphate transaminase
histidinol phosphate aminotransferase
imidazoleacetol phosphate transaminase
imidazolylacetolphosphate aminotransferase
imidazolylacetolphosphate transaminase
Systematic name:
L-histidinol-phosphate:2-oxoglutarate aminotransferase




A pyridoxal-phosphate protein.

Links to other databases

Enzymes and pathways: NC-IUBMB , BRENDA , DIAGRAM , ERGO , ExplorEnz , ENZYME@ExPASy , KEGG , MetaCyc , NIST 74 , UniPathway
Protein domains and families: PROSITE:PDOC00518
Structural data: CSA , EC2PDB
Gene Ontology: GO:0004400
CAS Registry Number: 9032-98-8
UniProtKB/Swiss-Prot: (507) [show] [UniProt]


  1. Ames, B.N. and Horecker, B.L.
    The biosynthesis of histidine: imidazoleacetol phosphate transaminase.
    J. Biol. Chem. 220 : 113-128 (1956).
  2. Martin, R.G. and Goldberger, R.F.
    Imidazolylacetolphosphate:L-glutamate aminotransferase. Purification and properties.
    J. Biol. Chem. 242 : 1168-1174 (1963).

[EC created 1961]