Ephrin type-A receptor 5
Also known as: BSK, EHK1, EPHA5, HEK7, TYRO4
Function
Receptor tyrosine kinase which binds promiscuously GPI-anchored 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. Among GPI-anchored ephrin-A ligands, EFNA5 most probably constitutes the cognate/functional ligand for EPHA5. Functions as an axon guidance molecule during development and may be involved in the development of the retinotectal, entorhino-hippocampal and hippocamposeptal pathways. Together with EFNA5 plays also a role in synaptic plasticity in adult brain through regulation of synaptogenesis. In addition to its function in the nervous system, the interaction of EPHA5 with EFNA5 mediates communication between pancreatic islet cells to regulate glucose-stimulated insulin secretion (By similarity).
Classification
- Family (Pfam)
- PF14575 EphA2_TM, PF25599 Ephrin_CRD, PF01404 Ephrin_lbd, PF00041 fn3, PF07714 PK_Tyr_Ser-Thr, PF00536 SAM_1
- InterPro
- Eph_TM, EphA5_rcpt_lig-bd, Ephrin_rcpt_lig-bd_dom, Ephrin_rcpt_TKs, FN3_dom, FN3_sf, Galactose-bd-like_sf, Ig-like_fold, Kinase-like_dom_sf, Prot_kinase_dom, Protein_kinase_ATP_BS, SAM, SAM/pointed_sf, Ser-Thr/Tyr_kinase_cat_dom, Tyr_kinase_AS, Tyr_kinase_cat_dom, Tyr_kinase_ephrin_rcpt, Tyr_kinase_rcpt_V_CS
- Functional cluster
- Immunoglobulin-Domain Cell Adhesion Proteins
Experimental structures · PDB · 2
A predicted model is available from AlphaFold.
Gene Ontology · 19
- GO:0030424 axon
- GO:0030425 dendrite
- GO:0009897 external side of plasma membrane
- GO:0032593 insulin-responsive compartment
- GO:0043005 neuron projection
- GO:0043025 neuronal cell body
- GO:0048471 perinuclear region of cytoplasm
- GO:0005886 plasma membrane
- GO:0005791 rough endoplasmic reticulum
- GO:0005524 ATP binding
- GO:0005003 ephrin receptor activity
- GO:0005004 GPI-linked ephrin receptor activity
- GO:0005005 transmembrane-ephrin receptor activity
- GO:0007411 axon guidance
- GO:0007413 axonal fasciculation
- GO:0048013 ephrin receptor signaling pathway
- GO:0021766 hippocampus development
- GO:0061179 negative regulation of insulin secretion involved in cellular response to glucose stimulus
- GO:0048666 neuron development
Drugs targeting this protein · 1
- VANDETANIB inhibitor
Related proteins · sequence + function similarity
- Ephrin type-A receptor 5 0.99
- Ephrin type-A receptor 5 0.98
- Ephrin type-A receptor 5 0.96
- Ephrin type-A receptor 7 0.95
- Ephrin type-A receptor 7 0.95
- Ephrin type-A receptor 7 0.95
- Ephrin type-A receptor 7 0.95
- Ephrin type-A receptor 3 0.94
- Ephrin type-A receptor 2 0.93
- Ephrin type-A receptor 2 0.93
- Ephrin type-A receptor 2 0.93
- Ephrin type-B receptor 5 0.93
Co-cited proteins · studied together in the literature
- Ephrin-A5 1 shared papers
- Ephrin type-A receptor 7 2 shared papers
- Ephrin type-A receptor 5 1 shared papers
- Ephrin-A5 1 shared papers
- Ephrin type-A receptor 4 2 shared papers
- Ephrin type-B receptor 2 2 shared papers
- Ephrin type-B receptor 3 1 shared papers
- Ephrin type-A receptor 1 1 shared papers
- Ephrin type-A receptor 3 1 shared papers
- Ephrin type-A receptor 8 1 shared papers
- Ephrin type-B receptor 1 1 shared papers
- Ephrin type-B receptor 4 1 shared papers
Literature · 8 cited papers
- The full-ORF clone resource of the German cDNA consortium. BMC Genomics · 2007
- Patterns of somatic mutation in human cancer genomes. Nature · 2007
- Generation and annotation of the DNA sequences of human chromosomes 2 and 4. Nature · 2005
- Immunohistochemical localization of EphA5 in the adult human central nervous system. J. Histochem. Cytochem. · 1999
- Unified nomenclature for Eph family receptors and their ligands, the ephrins. Cell · 1997
- Extensive splice variation and localization of the EHK-1 receptor tyrosine kinase in adult human brain and glial tumors. Brain Res. Mol. Brain Res. · 1997
- cDNA cloning and tissue distribution of five human EPH-like receptor protein-tyrosine kinases. Oncogene · 1995
- Cloning of AL-1, a ligand for an Eph-related tyrosine kinase receptor involved in axon bundle formation. Neuron · 1995