ID 4.1.1.44 DE 4-carboxymuconolactone decarboxylase. AN 4-carboxymuconolactone carboxy-lyase. CA 2-carboxy-2,5-dihydro-5-oxofuran-2-acetate = 4,5-dihydro-5-oxofuran-2- CA acetate + CO(2). DR P20370, DC4C_ACIAD ; P00881, DC4C_PSEPU ; //