Orsellinate decarboxylase

In enzymology, an orsellinate decarboxylase (EC 4.1.1.58) is an enzyme that catalyzes the chemical reaction

Hence, this enzyme has one substrate, 2,4-dihydroxy-6-methylbenzoate, and two products, orcinol 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 2,4-dihydroxy-6-methylbenzoate carboxy-lyase (orcinol-forming). This enzyme is also called orsellinate carboxy-lyase.