3.1.2.22 palmitoyl[protein] + H2O = palmitate + protein - 3.1.2.22 palmitoyl[protein] + H2O = palmitate + protein specific for long-chain thioesters of fatty acids from S-acylated residues in proteins, palmitoyl cysteine and palmitoyl-CoA 3.1.2.22 palmitoyl[protein] + H2O = palmitate + protein specific for long-chain thioesters of fatty acids from S-acylated residues in proteins, palmitoyl cysteine and palmitoyl-CoA, catalytic triad of PPT2 consists of Ser111, His283, and Asp228, mechanism, both PPT1 and PPT2 have lipid-binding grooves leading away from the active site 3.1.2.22 palmitoyl[protein] + H2O = palmitate + protein specific for long-chain thioesters of fatty acids from S-acylated residues in proteins, palmitoyl cysteine and palmitoyl-CoA, catalytic triad consists of Ser115, His289, and Asp233