<p>This entry represents the PhaC subunit of a heterodimeric form of polyhydroxyalkanoic acid (PHA) synthase. Excepting the PhaC of <taxon tax_id="1404">Bacillus megaterium</taxon> (which needs PhaR), all members require PhaE (<db_xref db="INTERPRO" dbkey="IPR010123"/>) for activity and are designated class III. This enzyme builds ester polymers for carbon and energy storage that accumulate in inclusions, and both this enzyme and the depolymerase associate with the inclusions. Class III enzymes polymerise short-chain-length hydroxyalkanoates.</p> Poly(R)-hydroxyalkanoic acid synthase, class III, PhaC subunit