Protostadienol synthase

Protostadienol synthase (EC 5.4.99.32, PdsA, (S)-2,3-epoxysqualene mutase [cyclizing, (17Z)-protosta-17(20),24-dien-3beta-ol-forming]) is an enzyme with systematic name (3S)-2,3-epoxy-2,3-dihydrosqualene mutase (cyclizing, (17Z)-protosta-17(20),24-dien-3beta-ol-forming).[1] This enzyme catalyses the following chemical reaction

(3S)-2,3-epoxy-2,3-dihydrosqualene (17Z)-protosta-17(20),24-dien-3beta-ol
Protostadienol synthase
Identifiers
EC number5.4.99.32
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum

(17Z)-Protosta-17(20),24-dien-3beta-ol is a precursor of the steroidal antibiotic helvolic acid.

References

  1. Lodeiro S, Xiong Q, Wilson WK, Ivanova Y, Smith ML, May GS, Matsuda SP (March 2009). "Protostadienol biosynthesis and metabolism in the pathogenic fungus Aspergillus fumigatus". Organic Letters. 11 (6): 1241–4. doi:10.1021/ol802696a. PMID 19216560.
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