AMPN_HUMAN

Source: hRBCD ; ID: IPI00221224
PM19886704
PM23856902
Marked as 'Integral membrane protein'
Confidence: medium (present in either hRBCD or BSc_CH or PM22954596) Search PubMed for
(RBC AND this entry)
Gene names: ANPEP , APN, CD13, PEPN
Protein names and data: AMPN_HUMAN , Aminopeptidase N; AP-N; hAPN; 3.4.11.2 , Alanyl aminopeptidase; Aminopeptidase M; AP-M; Microsomal aminopeptidase; Myeloid plasma membrane glycoprotein CD13; gp150; CD13 Lenght: 967 a.a.
Mass: 109540 Da
fasta formatted sequence
Function: Broad specificity aminopeptidase. Plays a role in the final digestion of peptides generated from hydrolysis of proteins by gastric and pancreatic proteases. May play a critical role in the pathogenesis of cholesterol gallstone disease. May be involved in the metabolism of regulatory peptides of diverse cell types, responsible for the processing of peptide hormones, such as angiotensin III and IV, neuropeptides, and chemokines. Found to cleave antigen peptides bound to major histocompatibility complex class II molecules of presenting cells and to degrade neurotransmitters at synaptic junctions. Is also implicated as a regulator of IL-8 bioavailability in the endometrium, and therefore may contribute to the regulation of angiogenesis. Is used as a marker for acute myeloid leukemia and plays a role in tumor invasion. In case of human coronavirus 229E (HCoV-229E) infection, serves as receptor for HCoV-229E spike glycoprotein. Mediates as well human cytomegalovirus (HCMV) infection.
Catalytic activity: Release of an N-terminal amino acid, Xaa-|- Yaa- from a peptide, amide or arylamide. Xaa is preferably Ala, but may be most amino acids including Pro (slow action). When a terminal hydrophobic residue is followed by a prolyl residue, the two may be released as an intact Xaa-Pro dipeptide.
Cellular location: Cell membrane; Single-pass type II membrane protein. Cytoplasm, cytosol (Potential). Note=A soluble form has also been detected.
Tissue specificity: Expressed in epithelial cells of the kidney, intestine, and respiratory tract; granulocytes, monocytes, fibroblasts, endothelial cells, cerebral pericytes at the blood- brain barrier, synaptic membranes of cells in the CNS. Also expressed in endometrial stromal cells, but not in the endometrial glandular cells. Found in the vasculature of tissues that undergo angiogenesis and in malignant gliomas and lymph node metastases from multiple tumor types but not in blood vessels of normal tissues. A soluble form has been found in plasma. It is found to be elevated in plasma and effusions of cancer patients.

Genetic variants

Database cross-references

UniProt: P15144
Ensembl: ENST00000300060
MIM: 151530
neXtProt: NX_P15144
Antibodypedia: P15144 (may not find the protein thus also not any antibody)
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