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0AMPN_HUMAN*   SwissProt (?) | Description Local Annotation Link Reference
General Information
NameANPEP
DescriptionAminopeptidase n (ec 3.4.11.2) (hapn) (alanyl aminopeptidase) (microsomal aminopeptidase) (aminopeptidase m) (gp150) (myeloid plasma membrane glycoprotein cd13).
SpeciesHomo sapiens (NCBI taxonomy ID: 9606)
GO0005887 integral to plasma membrane (TAS)
0004177 aminopeptidase activity (TAS)
0008237 metallopeptidase activity (TAS)
0004872 receptor activity (TAS)

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schematic display of those terms with internal associations, click the node and browse the corresponding GO term
Domain Architecture (Details)
InterPro domains unassigned to SynO:
Metalloproteases are the most diverse of the four main types of protease.ith more than 30 families identified to date . In these enzymes. divalent cation.sually zinc.ctivates the water molecule. The metal ion is held in place by amino acid ligands.sually three in number. The known metal ligands are His.lu.sp or Lys and at least one other residue is required for catalysis.hich may play an electrophillic role. Of the known metalloproteases.round half contain an HEXXH motif.hich has been shown in crystallographic studies to form part of the metal-binding site . The HEXXH motif is relatively common.ut can be more stringently defined for metalloproteases as abXHEbbHbc.here a is most often valine or threonine and forms part of the S1 subsite in thermolysin and neprilysin. is an uncharged residue.nd c a hydrophobic residue. Proline is never found in this site.ossibly because it would break the helical structure adopted by this motif in metalloproteases .Peptidases are grouped into clans and families. Clans are groups of families for which there is evidence of common ancestry. Families are grouped by their catalytic type.he first character representing the catalytic type: A.spartic; C.ysteine; G.lutamic acid; M.etallo; S.erine; T.hreonine; and U.nknown. A clan that contains families of more than one type is described as being of type P. The serine.hreonine and cysteine peptidases utilise the catalytic part of an amino acid as a nucleophile and form an acyl intermediate - these peptidases can also readily act as transferases. In the case of aspartic.lutamic and metallopeptidases.he nucleophile is an activated water molecule. This group of metallopeptidases belong to the MEROPS peptidase family M1 (clan MA(E)).he type example being aminopeptidase N from Homo sapiens. The protein fold of the peptidase domain for members of this family resembles that of thermolysin.he type example for clan MA.Membrane alanine aminopeptidase () is part of the HEXXH+Egroup; it consists entirely of aminopeptidases.pread across a widevariety of species . Functional studies show that CD13/APN catalyzes the removal of single amino acids from the amino terminus of small peptides and probably plays a role in their final digestion; one family member (leukotriene-A4 hydrolase) is known to hydrolyse the epoxide leukotriene-A4to form an inflammatory mediator . This hydrolase has been shown tohave aminopeptidase activity .nd the zinc ligands of the M1 familywere identified by site-directed mutagenesis on this enzyme CD13 participates in trimming peptides bound to MHC class II molecules and cleaves MIP-1 chemokine.hich alters target cell specificity from basophils to eosinophils . CD13 acts as a receptor for specific strains of RNA viruses (coronaviruses) which cause a relatively large percentage of upper respiratory trace infections.CD molecules are leucocyte antigens on cell surfaces. CD antigens nomenclature is updated at http://www.ncbi.nlm.nih.gov/PROW/guide/45277084.htm
  IPR001930:Peptidase M1, membrane alanine aminopeptidase
IPR001930:Peptidase_M1 
Evalue:-215.958602905273 
Location:75-479
SequencesProtein: AMPN_HUMAN (966 aa)
mRNA: NM_001150
Local Annotation
Synapse Ontology
Calcium release from RyR (Ryanodine Receptor) in the SR (Sarcoplasmic Reticulum) is activated by the calcium induced-calcium-release
sdb:0325 RyR-CICR  (Evidence:keywords)
?
sdb:0328 transmitters release and endocytosis  (Evidence:keywords)
KO assignmentK01256
  Level 3 annotation:
    membrane alanyl aminopeptidase
  Level 2 annotation:
    Glutathione metabolism
    CD molecules
    Hematopoietic cell lineage
Loci Structure (Details)Loci index, Chromosomal location, Length, Possible relational loci clusterExon1: 203 residues, 88129129-88129736Exon2: 29 residues, 88134694-88134776Exon3: 49 residues, 88135187-88135328Exon4: 58 residues, 88136394-88136562Exon5: 39 residues, 88136686-88136797Exon6: 32 residues, 88137269-88137361Exon7: 51 residues, 88141809-88141957Exon8: 20 residues, 88143494-88143550Exon9: 46 residues, 88143660-88143794Exon10: 27 residues, 88145345-88145422Exon11: 59 residues, 88145669-88145842Exon12: 24 residues, 88147473-88147539Exon13: 24 residues, 88147676-88147742Exon14: 50 residues, 88147881-88148025Exon15: 40 residues, 88148123-88148237Exon16: 53 residues, 88148487-88148642Exon17: 44 residues, 88148725-88148852Exon18: 48 residues, 88149312-88149452Exon19: 49 residues, 88149555-88149698Exon20: 246 residues, 88150204-88150938Exon21: 2 residues, -Jump to AMPN_HUMAN  
Tune and view alternative isoforms
Loci Cluster (Details)Loci: 4193 88008602-88023595 ~-15K 12995(PLIN)(-)Loci: 4194 88129129-88150938 ~-22K 13000(ANPEP)(-)Loci: 4195 88177792-88238206 ~-60K 13001(AP3S2)(-)Loci: 2905 88609898-88616447 ~-7K 13015(+)Loci: 4196 88691822-88693673 ~-2K 13016(GABARAPL3)(-)Loci: 2906 88732476-88846479 ~-114K 13020(IQGAP1)(+)Loci: 4192 87660562-87679030 ~-18K 12989(POLG)(-)Link out to UCSC