columbamine oxidase | |||||||||
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Identifiers | |||||||||
EC no. | 1.21.3.2 | ||||||||
CAS no. | 95329-18-3 | ||||||||
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 / QuickGO | ||||||||
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In enzymology, a columbamine oxidase (EC 1.21.3.2) is an enzyme that catalyzes the chemical reaction
Thus, the two substrates of this enzyme are columbamine and O2, whereas its two products are berberine and H2O.
This enzyme belongs to the family of oxidoreductases, specifically those acting on X-H and Y-H to form an X-Y bond with oxygen as acceptor. The systematic name of this enzyme class is columbamine:oxygen oxidoreductase (cyclizing). This enzyme is also called berberine synthase. This enzyme participates in alkaloid biosynthesis i. It employs one cofactor, iron.
In enzymology, a secologanin synthase (EC 1.14.19.62, was wrongly classified as EC 1.3.3.9 in the past) is an enzyme that catalyzes the chemical reaction
(S)-Tetrahydroberberine oxidase is an enzyme that catalyzes the final transformation in the biosynthesis of berberine, a quaternary benzylisoquinoline alkaloid of the protoberberine structural subgroup. This reaction pathway catalyzes the four-electron oxidation of (S)-tetrahydroberberine in the presence of oxygen to produce berberine and hydrogen peroxide as products.
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