ID 6.4.1.4 DE methylcrotonoyl-CoA carboxylase. AN beta-methylcrotonyl-CoA carboxylase. AN methylcrotonyl-CoA carboxylase. CA 3-methyl-(2E)-butenoyl-CoA + ATP + hydrogencarbonate = 3-methyl-(2E)- CA glutaconyl-CoA + ADP + H(+) + phosphate. DR Q42523, MCCA_ARATH ; Q54KE6, MCCA_DICDI ; Q96RQ3, MCCA_HUMAN ; DR Q99MR8, MCCA_MOUSE ; Q2QMG2, MCCA_ORYSJ ; Q5I0C3, MCCA_RAT ; DR Q42777, MCCA_SOYBN ; Q9LDD8, MCCB_ARATH ; P34385, MCCB_CAEEL ; DR Q8T2J9, MCCB_DICDI ; Q9V9A7, MCCB_DROME ; Q9HCC0, MCCB_HUMAN ; DR Q3ULD5, MCCB_MOUSE ; Q5XIT9, MCCB_RAT ; //