KEGG Orthology (KO) [BR:ko00001]
09100 Metabolism
09110 Biosynthesis of other secondary metabolites
00404 Staurosporine biosynthesis
K19886 rebC; flavin-dependent monooxygenase RebC
Enzymes [BR:ko01000]
1. Oxidoreductases
1.13 Acting on single donors with incorporation of molecular oxygen (oxygenases)
1.13.12 With incorporation of one atom of oxygen (internal monooxygenases or internal mixed-function oxidases)
1.13.12.17 dichloroarcyriaflavin A synthase
K19886 rebC; flavin-dependent monooxygenase RebC
KEGG Orthology (KO) [BR:ko00001]
09100 Metabolism
09110 Biosynthesis of other secondary metabolites
00404 Staurosporine biosynthesis
K19887 rebP; cytochrome P450 RebP
Enzymes [BR:ko01000]
1. Oxidoreductases
1.13 Acting on single donors with incorporation of molecular oxygen (oxygenases)
1.13.12 With incorporation of one atom of oxygen (internal monooxygenases or internal mixed-function oxidases)
1.13.12.17 dichloroarcyriaflavin A synthase
K19887 rebP; cytochrome P450 RebP
Oxidoreductases;
Acting on single donors with incorporation of molecular oxygen (oxygenases);
With incorporation of one atom of oxygen (internal monooxygenases or internal mixed-function oxidases)
The conversion of dichlorochromopyrrolate to dichloroarcyriaflavin A is a complex process that involves two enzyme components. RebP is an NAD-dependent cytochrome P-450 oxygenase that performs an aryl-aryl bond formation yielding the six-ring indolocarbazole scaffold [1]. Along with RebC, a flavin-dependent hydroxylase, it also catalyses the oxidative decarboxylation of both carboxyl groups. The presence of RebC ensures that the only product is the rebeccamycin aglycone dichloroarcyriaflavin A [2]. The enzymes are similar, but not identical, to StaP and StaC, which are involved in the synthesis of staurosporine [3].
Enzymatic reactions [BR:br08201]
1. Oxidoreductase reactions
1.13 Acting on single donors with incorporation of molecular oxygen (oxygenases)
1.13.12 With incorporation of one atom of oxygen (internal monooxygenases or internal mixed-function oxidases)
1.13.12.17
R09567 3,4-Bis(7-chloroindol-3-yl)pyrrole-2,5-dicarboxylate + 4 Oxygen + 4 NADH + 4 H+ <=> Dichloroarcyriaflavin A + 2 CO2 + 6 H2O + 4 NAD+