(2E)-butenoyl-CoA + CO2 => (2E)-glutaconyl-CoA + H(+)
(2e)-butenoyl-coa + co2 => (2e)-glutaconyl-coa + h(+)
(2E)-butenoyl-CoA + CO2 => (2E)-glutaconyl-CoA + H(+)
(2e)-butenoyl-coa + co2 => (2e)-glutaconyl-coa + h(+)