OnCo

EPHA4 (Ephrin type-A receptor 4) is a protein kinase, an enzyme that switches other proteins on by adding phosphate groups. The public catalogues list it as a drug target, and an approved or late-stage drug is recorded against it. Tied to Thyroid cancer and Neuroendocrine tumours. This dossier gathers the 0 products (0 approved), 0 trials, 0 pathways and 0 resistance routes in the corpus that involve it, with external identifiers so it can be joined to UniProt, ChEMBL, Open Targets and the rest of biology.

Biology

Receptor tyrosine kinase which binds membrane-bound ephrin family ligands residing on adjacent cells, leading to contact-dependent bidirectional signalling into neighboring cells. The signalling pathway downstream of the receptor is referred to as forward signalling while the signalling pathway downstream of the ephrin ligand is referred to as reverse signalling. Highly promiscuous, it has the unique property among Eph receptors to bind and to be physiologically activated by both GPI-anchored ephrin-A and transmembrane ephrin-B ligands including EFNA1 and EFNB3. Upon activation by ephrin ligands, modulates cell morphology and integrin-dependent cell adhesion through regulation of the Rac, Rap and Rho GTPases activity. Plays an important role in the development of the nervous system controlling different steps of axonal guidance including the establishment of the corticospinal projections. May also control the segregation of motor and sensory axons during neuromuscular circuit development. Location: Cell membrane; Cell projection, axon; Cell projection, dendrite; Postsynaptic density membrane (UniProt). Locus 2q36.1 (HGNC).

Where it is found
  • Thyroid cancer: Open Targets association 0.56 with thyroid cancer (MONDO_0002108)
  • Neuroendocrine tumours: Open Targets association 0.55 with neuroendocrine neoplasm (MONDO_0019496)
Class: kinase · Gene: EPHA4 · Facts checked 2026-09-23 · Target page

External identifiers

Built from HGNC, Ensembl, UniProt and ChEMBL ids

Products by modality and phase

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Resistance routes

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Companion diagnostics

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Preclinical models

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Literature

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Query for this target: (TITLE:"EPHA4" OR ABSTRACT:"EPHA4" OR TITLE:"EPH receptor A4" OR ABSTRACT:"EPH receptor A4" OR TITLE:"Ephrin type-A receptor 4" OR ABSTRACT:"Ephrin type-A receptor 4" OR TITLE:"Hek8" OR ABSTRACT:"Hek8" OR TITLE:"TYRO1" OR ABSTRACT:"TYRO1") AND (cancer OR tumor OR tumour OR oncology OR carcinoma OR lymphoma OR leukemia OR leukaemia OR myeloma OR sarcoma OR melanoma OR glioma). Results are unfiltered search hits about EPHA4, not a curated reading list.

Export

The dossier as machine-readable JSON: identifiers from HGNC, Ensembl, UniProt and ChEMBL, products with status, trials, pathways, hotspots, open questions and assays. The full entity record is in the open API at /api/v1/entities/epha4.json. Licence CC BY-NC 4.0.