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 | ||||||
| |||||||
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.