N-Acylaminoacyl-Peptide Hydrolase (APEH) Antibody – Rabbit Polyclonal

This gene encodes the enzyme acylpeptide hydrolase, which catalyzes the hydrolysis of the terminal acetylated amino acid preferentially from small acetylated peptides. The acetyl amino acid formed by this hydrolase is further processed to acetate and a free amino acid by an aminoacylase. This gene is located within the same region of chromosome 3 (3p21) as the aminoacylase gene, and deletions at this locus are also associated with a decrease in aminoacylase activity. The acylpeptide hydrolase is a homotetrameric protein of 300 kDa with each subunit consisting of 732 amino acid residues. It can play an important role in destroying oxidatively damaged proteins in living cells. Deletions of this gene locus are found in various types of carcinomas, including small cell lung carcinoma and renal cell carcinoma. [provided by RefSeq, Jul 2008]

APEH: This enzyme catalyzes the hydrolysis of the N-terminal peptide bond of an N-acetylated peptide to generate an N- acetylated amino acid and a peptide with a free N-terminus. It preferentially cleaves off Ac-Ala, Ac-Met and Ac-Ser. Belongs to the peptidase S9C family.

Protein type: Protease; EC 3.4.19.1

Chromosomal Location of Human Ortholog: 3p21.31

Cellular Component: nuclear membrane; cytoplasm

Molecular Function: omega peptidase activity; serine-type endopeptidase activity

Biological Process: beta-amyloid metabolic process; proteolysis