Acyl-protein thioesterase
Crystal structure of human APT1, PDB code 1fj2. Alpha helices are in red, beta strands in gold, catalytic site residues in black. The 2 different monomers of the dimer are shaded in green and brown. | |||||||||
| Identifiers | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Symbol | Acyl-protein thioesterases (APTs) | ||||||||
| Pfam | PF02230 | ||||||||
| InterPro | IPR029058 | ||||||||
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Acyl-protein thioesterases are enzymes that cleave off lipid modifications on proteins, located on the sulfur atom of cysteine residues linked via a thioester bond. Acyl-protein thioesterases are part of the α/β hydrolase superfamily of proteins and have a conserved catalytic triad. For that reason, acyl-protein thioesterases are also able to hydrolyze oxygen-linked ester bonds.