IUBMB Enzyme Nomenclature


Accepted name: 5α-hydroxysteroid dehydratase

Reaction: 5α-ergosta-7,22-diene-3β,5-diol = ergosterol + H2O

Other name(s): 5α-ergosta-7,22-diene-3β,5-diol 5,6-hydro-lyase

Systematic name: 5α-ergosta-7,22-diene-3β,5-diol 5,6-hydro-lyase (ergosterol-forming)

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 9075-27-8


1. Topham, R.W. and Gaylor, J.L. Isolation and purification of a 5α-hydroxysterol dehydrase of yeast. J. Biol. Chem. 245 (1970) 2319-2327. [PMID: 5442273]

[EC created 1972]

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