5alpha-hydroxysteroid dehydratase

5-alpha-hydroxysteroid dehydratase
Identifiers
EC number 4.2.1.62
CAS number 9075-27-8
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Gene Ontology AmiGO / EGO

In enzymology, a 5alpha-hydroxysteroid dehydratase (EC 4.2.1.62) is an enzyme that catalyzes the chemical reaction

5alpha-ergosta-7,22-diene-3beta,5-diol \rightleftharpoons ergosterol + H2O

Hence, this enzyme has one substrate, 5alpha-ergosta-7,22-diene-3beta,5-diol, and two products, ergosterol and H2O.

This enzyme belongs to the family of lyases, specifically the hydro-lyases, which cleave carbon-oxygen bonds. The systematic name of this enzyme class is 5alpha-ergosta-7,22-diene-3beta,5-diol 5,6-hydro-lyase (ergosterol-forming). This enzyme is also called 5alpha-ergosta-7,22-diene-3beta,5-diol 5,6-hydro-lyase.

References

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