EC - Versiconal hemiacetal acetate esterase

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IntEnz Enzyme Nomenclature


Accepted name:
versiconal hemiacetal acetate esterase
Other name:
VHA esterase
Systematic name:
versiconal-hemiacetal-acetate O-acetylhydrolase



Isolated from the mold Aspergillus parasiticus. Involved in a metabolic grid that leads to aflatoxin biosynthesis.

Links to other databases

Enzymes and pathways: NC-IUBMB , BRENDA , ExplorEnz , ENZYME@ExPASy , KEGG , MetaCyc , UniPathway
Structural data: CSA , EC2PDB
Gene Ontology: GO:0140397


  1. Kusumoto, K., Hsieh, D. P.
    Purification and characterization of the esterases involved in aflatoxin biosynthesis in Aspergillus parasiticus.
    Can. J. Microbiol. 42 : 804-810 (1996). [PMID: 8776851]
  2. Chang, P. K., Yabe, K., Yu, J.
    The Aspergillus parasiticus estA-encoded esterase converts versiconal hemiacetal acetate to versiconal and versiconol acetate to versiconol in aflatoxin biosynthesis.
    Appl. Environ. Microbiol. 70 : 3593-3599 (2004). [PMID: 15184162]

[EC created 2013]