methyl/ethyl malonyl-CoA decarboxylase activity

Catalysis of the reaction: (S)-methylmalonyl-CoA + H+ = CO2 + propanoyl-CoA or (2S)-ethylmalonyl-CoA + H+ = butanoyl-CoA + CO2.

• Code: GO:0004492
• Source: Gene Ontology
• Alternative labels: (S)-methylmalonyl-CoA carboxy-lyase (propanoyl-CoA-forming) methylmalonyl-coenzyme A decarboxylase activity (S)-2-methyl-3-oxopropanoyl-CoA carboxy-lyase activity (S)-methylmalonyl-CoA carboxy-lyase activity ethylmalonyl-CoA decarboxylase activity