Methylmalonyl-CoA decarboxylase

methylmalonyl-CoA decarboxylase
270px Methylmalonyl CoA decarboxylase trimer, E.Coli
Identifiers
EC number	4.1.1.41
CAS number	Template:CAS
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
Gene Ontology	AmiGO / EGO
Search PMC articles PubMed articles NCBI proteins

In enzymology, a methylmalonyl-CoA decarboxylase (EC 4.1.1.41) is an enzyme that catalyzes the chemical reaction

(S)-methylmalonyl-CoA $\rightleftharpoons$ propanoyl-CoA + CO₂

Hence, this enzyme has one substrate, (S)-methylmalonyl-CoA, and two products, propanoyl-CoA and CO₂.

This enzyme belongs to the family of lyases, specifically the carboxy-lyases, which cleave carbon-carbon bonds. The systematic name of this enzyme class is (S)-methylmalonyl-CoA carboxy-lyase (propanoyl-CoA-forming). Other names in common use include propionyl-CoA carboxylase, propionyl coenzyme A carboxylase, methylmalonyl-coenzyme A decarboxylase, (S)-2-methyl-3-oxopropanoyl-CoA carboxy-lyase [incorrect], and (S)-methylmalonyl-CoA carboxy-lyase. This enzyme participates in propanoate metabolism.

Structural studies

As of late 2007, two structures have been solved for this class of enzymes, with PDB accession codes 1EF8 and 1EF9.