AC MF_00504; DC Protein; auto TR HAMAP; MF_00504; -; 1; level=0 XX Names: Aminopeptidase_M17 XX ID PEPB DE RecName: Full=Peptidase B; DE EC=3.4.11.23; DE AltName: Full=Aminopeptidase B; GN Name=pepB; XX CC -!- FUNCTION: Probably plays an important role in intracellular peptide CC degradation. CC -!- CATALYTIC ACTIVITY: CC Reaction=Release of an N-terminal amino acid, Xaa, from a peptide or CC arylamide. Xaa is preferably Glu or Asp but may be other amino acids, CC including Leu, Met, His, Cys and Gln.; EC=3.4.11.23; CC -!- COFACTOR: CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035; CC Note=Binds 2 manganese ions per subunit.; CC -!- SUBUNIT: Homohexamer. CC -!- SUBCELLULAR LOCATION: Cytoplasm. CC -!- SIMILARITY: Belongs to the peptidase M17 family. XX DR Pfam; PF00883; Peptidase_M17; 1; trigger=no DR PRINTS; PR00481; LAMNOPPTDASE; 1; trigger=no DR PROSITE; PS00631; CYTOSOL_AP; 1; trigger=no XX KW Cytoplasm KW Hydrolase KW Protease KW Aminopeptidase KW Manganese KW Metal-binding XX GO GO:0004177; F:aminopeptidase activity GO GO:0030145; F:manganese ion binding GO GO:0006508; P:proteolysis GO GO:0005737; C:cytoplasm XX FT From: PEPB_ECOLI (P37095) FT ACT_SITE 207 FT Condition: K FT ACT_SITE 281 FT Condition: R FT BINDING 195 FT /ligand="Mn(2+)" FT /ligand_id="ChEBI:CHEBI:29035" FT /ligand_label="2" FT Condition: K FT BINDING 200 FT /ligand="Mn(2+)" FT /ligand_id="ChEBI:CHEBI:29035" FT /ligand_label="1" FT Condition: D FT BINDING 200 FT /ligand="Mn(2+)" FT /ligand_id="ChEBI:CHEBI:29035" FT /ligand_label="2" FT Condition: D FT BINDING 218 FT /ligand="Mn(2+)" FT /ligand_id="ChEBI:CHEBI:29035" FT /ligand_label="2" FT Condition: D FT BINDING 277 FT /ligand="Mn(2+)" FT /ligand_id="ChEBI:CHEBI:29035" FT /ligand_label="1" FT Condition: D FT BINDING 279 FT /ligand="Mn(2+)" FT /ligand_id="ChEBI:CHEBI:29035" FT /ligand_label="1" FT Condition: E FT BINDING 279 FT /ligand="Mn(2+)" FT /ligand_id="ChEBI:CHEBI:29035" FT /ligand_label="2" FT Condition: E XX Size: 427-456; Related: MF_00181; Template: P37095; Q9RF52; Scope: Bacteria Fusion: Nter: None Cter: None Duplicate: None Plasmid: None Comments: None XX # Revision 1.31 2022/11/19 //