Oxidoreductases;
Acting on diphenols and related substances as donors;
With oxygen as acceptor

1,4,5a,6,9,10a-hexahydrophenazine-1,6-dicarboxylate:oxygen oxidoreductase

(1) (1R,6R)-1,4,5,5a,6,9-hexahydrophenazine-1,6-dicarboxylate + O2 = (1R,10aS)-1,4,10,10a-tetrahydrophenazine-1,6-dicarboxylate + H2O2 [RN:R11489];
(2) (1R,10aS)-1,4,10,10a-tetrahydrophenazine-1,6-dicarboxylate + O2 = (5aS)-5,5a-dihydrophenazine-1,6-dicarboxylate + H2O2 [RN:R11490];
(3) (1R,10aS)-1,4,10,10a-tetrahydrophenazine-1-carboxylate + O2 = (10aS)-10,10a-dihydrophenazine-1-carboxylate + H2O2 [RN:R11491];
(4) (1R)-1,4,5,10-tetrahydrophenazine-1-carboxylate + O2 = (10aS)-5,10-dihydrophenazine-1-carboxylate + H2O2 [RN:R11492]

R11489 R11490 R11491 R11492

(1R,6R)-1,4,5,5a,6,9-hexahydrophenazine-1,6-dicarboxylate [CPD:C21408];
O2 [CPD:C00007];
(1R,10aS)-1,4,10,10a-tetrahydrophenazine-1,6-dicarboxylate [CPD:C21409];
(1R,10aS)-1,4,10,10a-tetrahydrophenazine-1-carboxylate [CPD:C21411];
(1R)-1,4,5,10-tetrahydrophenazine-1-carboxylate [CPD:C21413]

Requires FMN. The enzyme, isolated from the bacteria Pseudomonas fluorescens 2-79 and Burkholderia lata 383, is involved in biosynthesis of the reduced forms of phenazine, phenazine-1-carboxylate, and phenazine-1,6-dicarboxylate, where it catalyses multiple reactions.

EC 1.10.3.16 created 2016

1  [PMID:23897464]

Xu N, Ahuja EG, Janning P, Mavrodi DV, Thomashow LS, Blankenfeldt W

Trapped intermediates in crystals of the FMN-dependent oxidase PhzG provide insight into the final steps of phenazine biosynthesis.

Acta. Crystallogr. D. Biol. Crystallogr. 69 (2013) 1403-13.