EphA1 Receptor tyrosine kinase which binds promiscuously membrane-bound ephrin-A family ligands residing on adjacent cells, leading to contact-dependent bidirectional signaling into neighboring cells. The signaling pathway downstream of the receptor is referred to as forward signaling while the signaling pathway downstream of the ephrin ligand is referred to as reverse signaling. Binds with a low affinity EFNA3 and EFNA4 and with a high affinity to EFNA1 which most probably constitutes its cognate/functional ligand. Upon activation by EFNA1 induces cell attachment to the extracellular matrix inhibiting cell spreading and motility through regulation of ILK and downstream RHOA and RAC. Plays also a role in angiogenesis and regulates cell proliferation. May play a role in apoptosis. Belongs to the protein kinase superfamily. Tyr protein kinase family. Ephrin receptor subfamily. Overexpressed in several carcinomas. 3 alternatively spliced human isoforms have been reported. Note: This description may include information from UniProtKB.
Protein type: EC; Eph family; Kinase, protein; Membrane protein, integral; Protein kinase, TK; Protein kinase, tyrosine (receptor); TK group
Chromosomal Location of Human Ortholog: 7q34-q35
Cellular Component:  integral component of plasma membrane; plasma membrane
Molecular Function:  ATP binding; protein kinase activity; protein kinase binding; transmembrane-ephrin receptor activity
Biological Process:  activation of GTPase activity; angiogenesis; cell surface receptor signaling pathway; ephrin receptor signaling pathway; negative regulation of cell migration; negative regulation of protein kinase activity; peptidyl-tyrosine phosphorylation; positive regulation of angiogenesis; positive regulation of cell migration; positive regulation of cell proliferation; positive regulation of cell-matrix adhesion; positive regulation of stress fiber assembly; protein autophosphorylation; regulation of GTPase activity; somatic stem cell population maintenance; substrate adhesion-dependent cell spreading
Reference #:  P21709 (UniProtKB)
Alt. Names/Synonyms: EPH; EPH receptor A1; EPH tyrosine kinase; eph tyrosine kinase 1; EPHA1; ephrin receptor EphA1; Ephrin type-A receptor 1; EPHT; EPHT1; erythropoietin-producing hepatoma amplified sequence; Erythropoietin-producing hepatoma receptor; hEpha1; MGC163163; oncogene EPH; soluble EPHA1 variant 1; soluble EPHA1 variant 2; Tyrosine-protein kinase receptor EPH
Gene Symbols: EPHA1
Molecular weight: 108,127 Da
Basal Isoelectric point: 6.2  Predict pI for various phosphorylation states
CST Pathways:  Tyrosine Kinases & Substrates
Protein-Specific Antibodies, siRNAs or Recombinant Proteins from Cell Signaling Technology® Total Proteins
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Protein Structure Not Found.

Cross-references to other databases:  STRING  |  cBioPortal  |  Wikipedia  |  neXtProt  |  Protein Atlas  |  BioGPS  |  KinBase  |  Pfam  |  RCSB PDB  |  ENZYME  |  Phospho3D  |  Phospho.ELM  |  NetworKIN  |  GeneCards  |  UniProtKB  |  Entrez-Gene  |  GenPept  |  Ensembl Gene  |  Ensembl Protein