In enzymology, a long-chain-fatty-acidâÂÂluciferin-component ligase () is an enzyme that catalyzes the chemical reaction
The 3 substrates of this enzyme are ATP, acid, and protein, whereas its 3 products are AMP, diphosphate, and acyl-protein thioester.
This enzyme belongs to the family of ligases, specifically those forming carbon-sulfur bonds as acid-thiol ligases. The systematic name of this enzyme class is long-chain-fatty-acid:protein ligase (AMP-forming). This enzyme is also called acyl-protein synthetase.