catalytic activity:Cleavage of an N-acetyl or N-formyl amino acid from the N-terminus of a polypeptide.,function: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.,mass spectrometry: PubMed:10395453,similarity:Belongs to the peptidase S9C family.,subunit:Homotetramer.,
Cytoplasm.
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