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ENZYME

ENZYME entry: EC 1.14.12.22

Accepted Name
carbazole 1,9a-dioxygenase
Alternative Name(s)
CARDO
Reaction catalysed
  • 9H-carbazole + H(+) + NADH + O2 = 2'-aminobiphenyl-2,3-diol + NAD(+)
  • 9H-carbazole + H(+) + NADPH + O2 = 2'-aminobiphenyl-2,3-diol + NADP(+)
Comment(s)
  • This enzyme catalyzes the first reaction in the pathway of carbazole degradation.
  • The enzyme attacks at the 1 and 9a positions of carbazole, resulting in the formation of a highly unstable hemiaminal intermediate that undergoes a spontaneous cleavage and rearomatization, resulting in 2'-aminobiphenyl-2,3-diol.
  • In most bacteria the enzyme is a complex composed of a terminal oxygenase, a ferredoxin, and a ferredoxin reductase.
  • The terminal oxygenase component contains a nonheme iron center and a Rieske [2Fe-2S] iron-sulfur cluster.
Cross-references
BRENDA1.14.12.22
EC2PDB1.14.12.22
ExplorEnz1.14.12.22
PRIAM enzyme-specific profiles1.14.12.22
KEGG Ligand Database for Enzyme Nomenclature1.14.12.22
IUBMB Enzyme Nomenclature1.14.12.22
IntEnz1.14.12.22
MEDLINEFind literature relating to 1.14.12.22
MetaCyc1.14.12.22
Rhea expert-curated reactions1.14.12.22
UniProtKB/Swiss-Prot
Q8G8B6, CARAA_PSERED5IGG0, CARAA_SPHSX

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