Seroatlas · Human Serome Atlas

METAP2

Methionine aminopeptidase 2

Also known as: MAP2, MAP2_HUMAN, MNPEP, p67

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
P50579
Gene
METAP2
Ensembl
ENSG00000111142
Chromosome
12
Canonical length
478 aa
Protein class
Enzymes, Plasma proteins, Predicted intracellular proteins
Subcellular location
Plasma membrane,Cytosol

OverviewNCBI Gene

The protein encoded by this gene is a member of the methionyl aminopeptidase family. The encoded protein functions both by protecting the alpha subunit of eukaryotic initiation factor 2 from inhibitory phosphorylation and by removing the amino-terminal methionine residue from nascent proteins. Increased expression of this gene is associated with various forms of cancer, and the anti-cancer drugs fumagillin and ovalicin inhibit the protein by irreversibly binding to its active site. Inhibitors of this gene have also been shown to be effective for the treatment of obesity. A pseudogene of this gene is located on chromosome 2. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2015]

Canonical amino-acid sequenceUniProt

478 residues, UniProt reviewed canonical sequence.

>P50579|METAP2
     1  MAGVEEVAAS GSHLNGDLDP DDREEGAAST AEEAAKKKRR KKKKSKGPSA AGEQEPDKES
    61  GASVDEVARQ LERSALEDKE RDEDDEDGDG DGDGATGKKK KKKKKKRGPK VQTDPPSVPI
   121  CDLYPNGVFP KGQECEYPPT QDGRTAAWRT TSEEKKALDQ ASEEIWNDFR EAAEAHRQVR
   181  KYVMSWIKPG MTMIEICEKL EDCSRKLIKE NGLNAGLAFP TGCSLNNCAA HYTPNAGDTT
   241  VLQYDDICKI DFGTHISGRI IDCAFTVTFN PKYDTLLKAV KDATNTGIKC AGIDVRLCDV
   301  GEAIQEVMES YEVEIDGKTY QVKPIRNLNG HSIGQYRIHA GKTVPIVKGG EATRMEEGEV
   361  YAIETFGSTG KGVVHDDMEC SHYMKNFDVG HVPIRLPRTK HLLNVINENF GTLAFCRRWL
   421  DRLGESKYLM ALKNLCDLGI VDPYPPLCDI KGSYTAQFEH TILLRPTCKE VVSRGDDY

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against METAP2 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.

Antibody reachability
Intracellular
Secreted
No
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.34
Highest tissue expression
117 nTPM

Expression across tissuesHPA

Tissue

  • tonsil: 117 nTPM
  • skeletal muscle: 112 nTPM
  • bone marrow: 96 nTPM
  • seminal vesicle: 95 nTPM
  • liver: 79 nTPM
  • tongue: 74 nTPM

Single-cell type

  • erythrocyte progenitors: 730 nCPM
  • late primary spermatocytes: 479 nCPM
  • hepatocytes: 370 nCPM
  • early primary spermatocytes: 339 nCPM
  • basal keratinocytes: 316 nCPM
  • suprabasal keratinocytes: 290 nCPM

Immune cell

  • memory B-cell: 115 nTPM
  • naive B-cell: 102 nTPM
  • plasmacytoid DC: 86 nTPM
  • naive CD4 T-cell: 80 nTPM
  • basophil: 78 nTPM
  • MAIT T-cell: 75 nTPM

Brain region

  • hypothalamus: 73 nTPM
  • white matter: 72 nTPM
  • medulla oblongata: 71 nTPM
  • pons: 64 nTPM
  • cerebral cortex: 64 nTPM
  • thalamus: 63 nTPM

Genetic constraint and essentialitygnomAD · DepMap

Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.

gnomAD LOEUF (loss-of-function intolerance)
0.59
gnomAD pLI
0
gnomAD missense Z
2.94
DepMap mean gene effect
-0.63
DepMap dependency class
common

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 6% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of METAP2 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads METAP2 as an antibody target. Whether an autoantibody or antibody against METAP2 could matter depends on whether native METAP2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

METAP2 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.

Annotation status

The present source text does not explicitly label METAP2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/METAP2. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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