Protostadienol synthase
Definition:
EC Tree > 5 Isomerases > 5.4 Intramolecular transferases > 5.4.99 Transferring other groups > 5.4.99.32 protostadienol synthase
Protostadienol synthase cyclizes (3S)-2,3-epoxy-2,3-dihydrosqualene into (17Z)-protosta-17(20),24-dien-3β-ol, a precursor of the steroidal antibiotic helvolic acid. It appears in viruses and cellular organisms. Structurally it is an oxidosqualene cyclase.
Protostadienol synthase cyclizes (3S)-2,3-epoxy-2,3-dihydrosqualene into (17Z)-protosta-17(20),24-dien-3β-ol, a precursor of the steroidal antibiotic helvolic acid. It appears in viruses and cellular organisms. Structurally it is an oxidosqualene cyclase.
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