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Catalysis of the reaction: 5,7,24(28)-ergostatrienol + O2 + NADPH = 5,7,22,24(28)-ergostatetraenol + 2 H2O + NADP+. Catalysis of the introduction of a double bond into a sterol molecule. Catalysis of an oxidation-reduction (redox) reaction in which hydrogen or electrons are transferred from each of two donors, and molecular oxygen is reduced or incorporated into a donor. Catalysis of an oxidation-reduction (redox) reaction in which hydrogen or electrons are transferred from each of two donors, and molecular oxygen is reduced to two molecules of water.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: C-5 sterol desaturase activity
Acc: GO:0000248
Aspect: Molecular Function
Desc: Catalysis of the reaction: 5,7,24(28)-ergostatrienol + O2 + NADPH = 5,7,22,24(28)-ergostatetraenol + 2 H2O + NADP+.
Synonyms:
  • sterol-C5-desaturase activity
Proteins in PDR annotated with:
   This term: 8 [Search]
   Term or descendants: 8 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0000248 - C-5 sterol desaturase activity (interactive image map)
YRC Informatics Platform - Version 3.0
Created and Maintained by: Michael Riffle