Seroatlas · Human Serome Atlas

EPO

Erythropoietin

Also known as: EP, EPO_HUMAN

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

Protein identityUniProt · HPA

UniProt accession
P01588
Gene
EPO
Ensembl
ENSG00000130427
Chromosome
7
Canonical length
193 aa
Protein class
Cancer-related genes, Candidate cardiovascular disease genes, Disease related genes, Human disease related genes, Predicted secreted proteins
Secretome location
Secreted to blood

OverviewNCBI Gene

This gene encodes a secreted, glycosylated cytokine composed of four alpha helical bundles. The encoded protein is mainly synthesized in the kidney, secreted into the blood plasma, and binds to the erythropoietin receptor to promote red blood cell production, or erythropoiesis, in the bone marrow. Expression of this gene is upregulated under hypoxic conditions, in turn leading to increased erythropoiesis and enhanced oxygen-carrying capacity of the blood. Expression of this gene has also been observed in brain and in the eye, and elevated expression levels have been observed in diabetic retinopathy and ocular hypertension. Recombinant forms of the encoded protein exhibit neuroprotective activity against a variety of potential brain injuries, as well as antiapoptotic functions in several tissue types, and have been used in the treatment of anemia and to enhance the efficacy of cancer therapies. [provided by RefSeq, Aug 2017]

Canonical amino-acid sequenceUniProt

193 residues, UniProt reviewed canonical sequence.

>P01588|EPO
     1  MGVHECPAWL WLLLSLLSLP LGLPVLGAPP RLICDSRVLE RYLLEAKEAE NITTGCAEHC
    61  SLNENITVPD TKVNFYAWKR MEVGQQAVEV WQGLALLSEA VLRGQALLVN SSQPWEPLQL
   121  HVDKAVSGLR SLTTLLRALG AQKEAISPPD AASAAPLRTI TADTFRKLFR VYSNFLRGKL
   181  KLYTGEACRT GDR

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against EPO 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
Unknown
Secreted
No
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.36
Highest tissue expression
34 nTPM

Expression across tissuesHPA

Tissue

  • liver: 34 nTPM
  • pancreas: 6.1 nTPM
  • cervix: 2.8 nTPM
  • kidney: 2.2 nTPM
  • endometrium: 1.3 nTPM
  • salivary gland: 1.1 nTPM

Single-cell type

  • pancreatic acinar cells: 22 nCPM
  • extravillous trophoblasts: 18 nCPM
  • hepatocytes: 6.8 nCPM
  • hepatic stellate cells: 6.5 nCPM
  • migrating cytotrophoblasts: 3.6 nCPM
  • cytotrophoblasts: 3.2 nCPM

Immune cell

  • basophil: 0 nTPM
  • classical monocyte: 0 nTPM
  • eosinophil: 0 nTPM
  • gdT-cell: 0 nTPM
  • intermediate monocyte: 0 nTPM
  • MAIT T-cell: 0 nTPM

Brain region

  • hypothalamus: 0.7 nTPM
  • cerebellum: 0.2 nTPM
  • cerebral cortex: 0.2 nTPM
  • medulla oblongata: 0.2 nTPM
  • pons: 0.2 nTPM
  • amygdala: 0.1 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about EPO.

Disease | GeneticClinVar

3 pathogenic / likely-pathogenic of 60 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

Disease | ImmuneIEDB

Conditions an epitope on EPO was assayed in.

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)
0.9
gnomAD pLI
0.01
gnomAD missense Z
0.56
DepMap mean gene effect
0.01
DepMap dependency class
none

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

InteractionsUniProt · HPA

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

EPO 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 EPO as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/EPO. 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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