ID 5.3.3.18 DE 2-(1,2-epoxy-1,2-dihydrophenyl)acetyl-CoA isomerase. AN 1,2-epoxyphenylacetyl-CoA isomerase. CA 2-(1,2-epoxy-1,2-dihydrophenyl)acetyl-CoA = 2-oxepin-2(3H)-ylideneacetyl- CA CoA. CC -!- The enzyme catalyzes the reversible isomerization of 2-(1,2-epoxy- CC 1,2-dihydrophenyl)acetyl-CoA to the unusual unsaturated, oxygen- CC containing, seven-member heterocyclic enol ether 2-oxepin-2(3H)- CC ylideneacetyl-CoA, as part of an aerobic phenylacetate degradation CC pathway. DR P77467, PAAG_ECOLI ; //