methylcrotonoyl-CoA carboxylase activity https://github.com/geneontology/go-ontology/issues/30193 GO:0004485 MetaCyc:METHYLCROTONYL-COA-CARBOXYLASE-RXN EC:6.4.1.4 Reactome:R-HSA-70773 methylcrotonyl coenzyme A carboxylase activity beta-methylcrotonyl CoA carboxylase activity RHEA:13589 Reactome:R-HSA-9909466 molecular_function Catalysis of the reaction: 3-methylbut-2-enoyl-CoA + ATP + bicarbonate = trans-3-methylglutaconyl-CoA + ADP + 2 H+ + phosphate. KEGG_REACTION:R04138 Reactome:R-HSA-508308 beta-methylcrotonyl-CoA carboxylase activity 3-methylcrotonoyl-CoA:carbon-dioxide ligase (ADP-forming) beta-methylcrotonyl coenzyme A carboxylase activity MCCC activity methylcrotonyl-CoA carboxylase activity CoA carboxylase activity