EPH receptor A4

EPHA4
Available structures
PDB	Ortholog search: PDBe RCSB
List of PDB id codes
	2LW8, 2WO1, 2WO2, 2WO3, 3CKH, 3GXU, 4BK4, 4BK5, 4BKA, 4BKF, 4M4P, 4M4R, 4W4Z, 4W50, 5JR2
Identifiers
Aliases	EPHA4, Epha4, 2900005C20Rik, AI385584, Cek8, Hek8, Sek, Sek1, Tyro1, rb, EPH receptor A4, HEK8, SEK, TYRO1, EK8
External IDs	OMIM: 602188; MGI: 98277; HomoloGene: 20933; GeneCards: EPHA4; OMA:EPHA4 - orthologs
Gene location (Human)
Chr.	Chromosome 2 (human)
End	221,574,202 bp
Gene location (Mouse)
Chr.	Chromosome 1 (mouse)
End	77,491,725 bp
RNA expression pattern
	Top expressed in
	Brodmann area 23; ; frontal pole; ; middle temporal gyrus; ; lateral nuclear group of thalamus; ; endothelial cell; ; primary visual cortex; ; superior frontal gyrus; ; parietal lobe; ; postcentral gyrus; ; palpebral conjunctiva;
	Top expressed in
	Rostral migratory stream; ; medial ganglionic eminence; ; ventricular zone; ; dorsal striatum; ; genital tubercle; ; dentate gyrus of hippocampal formation granule cell; ; medial dorsal nucleus; ; lateral geniculate nucleus; ; nucleus accumbens; ; tail of embryo;
	More reference expression data
	; ;
	More reference expression data
Gene ontology
Molecular function	transferase activity; protein kinase activity; nucleotide binding; GPI-linked ephrin receptor activity; ephrin receptor binding; DH domain binding; transmembrane-ephrin receptor activity; kinase activity; protein binding; identical protein binding; transmembrane receptor protein tyrosine kinase activity; PH domain binding; protein tyrosine kinase activity; ATP binding; ephrin receptor activity; amyloid-beta binding; protein tyrosine kinase binding;
Cellular component	cytoplasm; axon terminus; integral component of membrane; cell body; perikaryon; postsynaptic membrane; Golgi apparatus; endosome; cell projection; early endosome membrane; membrane; postsynaptic density; filopodium; neuromuscular junction; plasma membrane; dendritic spine; axonal growth cone; integral component of plasma membrane; synapse; cell surface; mitochondrial outer membrane; cell junction; axon; dendrite; early endosome; endoplasmic reticulum; neuron projection; dendritic shaft; receptor complex; Schaffer collateral - CA1 synapse; glutamatergic synapse; integral component of postsynaptic membrane; integral component of presynaptic membrane;
Biological process	negative regulation of axon regeneration; fasciculation of motor neuron axon; phosphorylation; transmembrane receptor protein tyrosine kinase signaling pathway; positive regulation of JUN kinase activity; regulation of GTPase activity; nervous system development; regulation of axonogenesis; multicellular organism development; protein phosphorylation; regulation of astrocyte differentiation; cell adhesion; positive regulation of dendrite morphogenesis; nephric duct morphogenesis; protein autophosphorylation; corticospinal tract morphogenesis; peptidyl-tyrosine phosphorylation; fasciculation of sensory neuron axon; motor neuron axon guidance; positive regulation of Rho guanyl-nucleotide exchange factor activity; regulation of dendritic spine morphogenesis; glial cell migration; adult walking behavior; axon guidance; ephrin receptor signaling pathway; negative regulation of neuron projection development; protein stabilization; positive regulation of protein tyrosine kinase activity; neuron projection guidance; synapse pruning; neuron projection fasciculation; negative regulation of long-term synaptic potentiation; positive regulation of amyloid-beta formation; positive regulation of aspartic-type endopeptidase activity involved in amyloid precursor protein catabolic process; negative regulation of proteolysis involved in cellular protein catabolic process; cellular response to amyloid-beta; regulation of modification of synaptic structure;
	Sources:Amigo / QuickGO
Orthologs
	2043
	13838
	ENSG00000116106
	ENSMUSG00000026235
	P54764
	Q03137
	NM_001304536; NM_001304537; NM_004438; NM_001363748
	NM_007936
	NP_001291465; NP_001291466; NP_004429; NP_001350677
	NP_031962
	Wikidata
View/Edit Human	View/Edit Mouse

EPH receptor A4 (ephrin type-A receptor 4) is a protein that in humans is encoded by the EPHA4 gene.

This gene belongs to the ephrin receptor subfamily of the protein-tyrosine kinase family. EPH and EPH-related receptors have been implicated in mediating developmental events, particularly in the nervous system. Receptors in the EPH subfamily typically have a single kinase domain and an extracellular region containing a Cys-rich domain and 2 fibronectin type III repeats. The ephrin receptors are divided into 2 groups based on the similarity of their extracellular domain sequences and their affinities for binding ephrin-A and ephrin-B ligands.

In 2012, a publication in Nature Medicine revealed a connection between EPHA4 and the neurodegenerative disease Amyotrophic lateral sclerosis (ALS), where a defective gene allows ALS patients to live considerably longer than patients with an intact gene. This opens up for development of treatment for this currently untreatable disease.