NP_005224.2
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NCBI GenBank Nucleotide #
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UniProt Primary Accession #
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UniProt Secondary Accession #
UniProt Related Accession #
Molecular Weight
60,946 Da
NCBI Official Full Name
ephrin type-A receptor 3 isoform a
NCBI Official Synonym Full Names
EPH receptor A3
NCBI Official Synonym Symbols
EK4; ETK; HEK; ETK1; HEK4; TYRO4 [Similar Products]
NCBI Protein Information
ephrin type-A receptor 3; EPH-like kinase 4; human embryo kinase 1; eph-like tyrosine kinase 1; TYRO4 protein tyrosine kinase; tyrosine-protein kinase receptor ETK1
UniProt Protein Name
Ephrin type-A receptor 3
UniProt Synonym Protein Names
EPH-like kinase 4; EK4; hEK4; HEK; Human embryo kinase; Tyrosine-protein kinase TYRO4; Tyrosine-protein kinase receptor ETK1; Eph-like tyrosine kinase 1
UniProt Synonym Gene Names
ETK; ETK1; HEK; TYRO4; EK4; hEK4; Human embryo kinase; Eph-like tyrosine kinase 1 [Similar Products]
UniProt Entry Name
EPHA3_HUMAN
NCBI Summary for EPHA3
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. This gene encodes a protein that binds ephrin-A ligands. Two alternatively spliced transcript variants have been described for this gene. [provided by RefSeq, Jul 2008]
UniProt Comments for EPHA3
EphA3: a receptor tyrosine kinase of the Eph family. Receptor for members of the ephrin-A family: binds to ephrin-A2, -A3, -A4 and -A5The Eph receptor tyrosine kinase family, the largest in the tyrosine kinase group, has fourteen members. They bind membrane-anchored ligands, ephrins, at sites of cell-cell contact, regulating the repulsion and adhesion of cells that underlie the establishment, maintenance, and remodeling of patterns of cellular organization. Eph signals are particularly important in regulating cell adhesion and cell migration during development, axon guidance, homeostasis and disease. EphA receptors bind to GPI-anchored ephrin-A ligands, while EphB receptors bind to ephrin-B proteins that have a transmembrane and cytoplasmic domain. Interactions between EphB receptor kinases and ephrin-B proteins transduce signals bidirectionally, signaling to both interacting cell types. Eph receptors and ephrins also regulate the adhesion of endothelial cells and are required for the remodeling of blood vessels. Two point mutations seen in a survey of colorectal tumors. Soluble receptors reduce tumor growth and angiogenesis in mouse models. Two alternatively spliced isoforms of EphA3 have been described.
Protein type: Protein kinase, TK; Kinase, protein; Membrane protein, integral; EC 2.7.10.1; Protein kinase, tyrosine (receptor); TK group; Eph family
Chromosomal Location of Human Ortholog: 3p11.2
Cellular Component: integral to plasma membrane; early endosome; plasma membrane; extracellular region
Molecular Function: protein binding; GPI-linked ephrin receptor activity; ATP binding
Biological Process: axon guidance; cell migration; peptidyl-tyrosine phosphorylation; regulation of actin cytoskeleton organization and biogenesis; regulation of focal adhesion formation; ephrin receptor signaling pathway; cell adhesion
Research Articles on EPHA3
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Products associated with anti-EPHA3 antibody
Pathways associated with anti-EPHA3 antibody
Diseases associated with anti-EPHA3 antibody
Organs/Tissues associated with anti-EPHA3 antibody
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