EPHB3
Available structures PDB Ortholog search: PDBe RCSB List of PDB id codes 3P1I, 3ZFY
Identifiers
Aliases	EPHB3, ETK2, HEK2, TYRO6, EPH receptor B3, EK2
External IDs	OMIM: 601839; MGI: 104770; HomoloGene: 20938; GeneCards: EPHB3; OMA:EPHB3 - orthologs
Gene location (Human) Chr. Chromosome 3 (human)[1] Band 3q27.1 Start 184,561,785 bp[1] End 184,582,408 bp[1]
Gene location (Mouse) Chr. Chromosome 16 (mouse)[2] Band 16|16 B1 Start 21,023,505 bp[2] End 21,042,055 bp[2]
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in pancreatic ductal cell skin of leg skin of abdomen gingival epithelium parotid gland mucosa of transverse colon periodontal fiber skin of arm hair follicle rectum Top expressed in saccule otic placode otic vesicle lip tongue corneal stroma molar skin of abdomen esophagus calvaria More reference expression data BioGPS More reference expression data
Gene ontology Molecular function nucleotide binding transmembrane receptor protein tyrosine kinase activity protein kinase activity kinase activity ATP binding transferase activity ephrin receptor activity axon guidance receptor activity protein tyrosine kinase activity receptor tyrosine kinase transmembrane signaling receptor activity transmembrane-ephrin receptor activity Cellular component extracellular region dendrite integral component of membrane cell projection membrane cytosol plasma membrane integral component of plasma membrane cytoplasm neuron projection receptor complex Biological process phosphorylation peptidyl-tyrosine phosphorylation nervous system development multicellular organism development regulation of cell-cell adhesion protein phosphorylation substrate adhesion-dependent cell spreading transmembrane receptor protein tyrosine kinase signaling pathway regulation of GTPase activity protein autophosphorylation angiogenesis ephrin receptor signaling pathway urogenital system development axon guidance axonal fasciculation cell migration central nervous system projection neuron axonogenesis corpus callosum development retinal ganglion cell axon guidance thymus development digestive tract morphogenesis regulation of axonogenesis positive regulation of synapse assembly roof of mouth development dendritic spine development dendritic spine morphogenesis negative regulation of signal transduction cell differentiation negative regulation of apoptotic process positive regulation of ERK1 and ERK2 cascade Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 2049 13845 Ensembl ENSG00000182580 ENSMUSG00000005958 UniProt P54753 P54754 RefSeq (mRNA) NM_004443 NM_010143 RefSeq (protein) NP_004434 NP_034273 Location (UCSC) Chr 3: 184.56 – 184.58 Mb Chr 16: 21.02 – 21.04 Mb PubMed search [3] [4]
Wikidata
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Ephrin type-B receptor 3 is a protein that in humans is encoded by the EPHB3 gene.^[5][6]

Function

Ephrin receptors and their ligands, the ephrins, mediate numerous developmental processes, particularly in the nervous system. Based on their structures and sequence relationships, ephrins are divided into the ephrin-A (EFNA) class, which are anchored to the membrane by a glycosylphosphatidylinositol linkage, and the ephrin-B (EFNB) class, which are transmembrane proteins. The Eph family of 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. Ephrin receptors make up the largest subgroup of the receptor tyrosine kinase (RTK) family. The protein encoded by this gene is a receptor for ephrin-B family members.^[6]

Interactions

EPHB3 has been shown to interact with MLLT4^[7] and RAS p21 protein activator 1.^[8]