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Symbols EFNA2 ; ELF-1; EPLG6; HEK7-L; LERK6
External IDs Template:OMIM5 Template:MGI HomoloGene1075
RNA expression pattern
PBB GE EFNA2 208256 at tn.png
More reference expression data
Template:GNF Ortholog box
Species Human Mouse
Entrez n/a n/a
Ensembl n/a n/a
UniProt n/a n/a
RefSeq (mRNA) n/a n/a
RefSeq (protein) n/a n/a
Location (UCSC) n/a n/a
PubMed search n/a n/a

Ephrin-A2, also known as EFNA2, is a human gene.[1]

This gene encodes a member of the ephrin family. The protein is composed of a signal sequence, a receptor-binding region, a spacer region, and a hydrophobic region. The EPH and EPH-related receptors comprise the largest subfamily of receptor protein-tyrosine kinases and have been implicated in mediating developmental events, 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. Posttranslational modifications determine whether this protein localizes to the nucleus or the cytoplasm.[1]


  1. 1.0 1.1 "Entrez Gene: EFNA2 ephrin-A2".

Further reading

  • Flanagan JG, Vanderhaeghen P (1998). "The ephrins and Eph receptors in neural development". Annu. Rev. Neurosci. 21: 309–45. doi:10.1146/annurev.neuro.21.1.309. PMID 9530499.
  • Zhou R (1998). "The Eph family receptors and ligands". Pharmacol. Ther. 77 (3): 151–81. PMID 9576626.
  • Holder N, Klein R (1999). "Eph receptors and ephrins: effectors of morphogenesis". Development. 126 (10): 2033–44. PMID 10207129.
  • Wilkinson DG (2000). "Eph receptors and ephrins: regulators of guidance and assembly". Int. Rev. Cytol. 196: 177–244. PMID 10730216.
  • Xu Q, Mellitzer G, Wilkinson DG (2001). "Roles of Eph receptors and ephrins in segmental patterning". Philos. Trans. R. Soc. Lond., B, Biol. Sci. 355 (1399): 993–1002. doi:10.1098/rstb.2000.0635. PMID 11128993.
  • Wilkinson DG (2001). "Multiple roles of EPH receptors and ephrins in neural development". Nat. Rev. Neurosci. 2 (3): 155–64. PMID 11256076.
  • Gale NW, Holland SJ, Valenzuela DM; et al. (1996). "Eph receptors and ligands comprise two major specificity subclasses and are reciprocally compartmentalized during embryogenesis". Neuron. 17 (1): 9–19. PMID 8755474.
  • "Unified nomenclature for Eph family receptors and their ligands, the ephrins. Eph Nomenclature Committee". Cell. 90 (3): 403–4. 1997. PMID 9267020.
  • Cerretti DP, Nelson N (1998). "Characterization of the genes for mouse LERK-3/Ephrin-A3 (Epl3), mouse LERK-4/Ephrin-A4 (Epl4), and human LERK-6/Ephrin-A2 (EPLG6): conservation of intron/exon structure". Genomics. 47 (1): 131–5. doi:10.1006/geno.1997.5088. PMID 9465306.
  • Ciossek T, Monschau B, Kremoser C; et al. (1998). "Eph receptor-ligand interactions are necessary for guidance of retinal ganglion cell axons in vitro". Eur. J. Neurosci. 10 (5): 1574–80. PMID 9751130.
  • Aasheim HC, Pedeutour F, Grosgeorge J, Logtenberg T (1998). "Cloning, chromosal mapping, and tissue expression of the gene encoding the human Eph-family kinase ligand ephrin-A2". Biochem. Biophys. Res. Commun. 252 (2): 378–82. doi:10.1006/bbrc.1998.9618. PMID 9826538.
  • Gerlai R, Shinsky N, Shih A; et al. (1999). "Regulation of learning by EphA receptors: a protein targeting study". J. Neurosci. 19 (21): 9538–49. PMID 10531456.
  • Hattori M, Osterfield M, Flanagan JG (2000). "Regulated cleavage of a contact-mediated axon repellent". Science. 289 (5483): 1360–5. PMID 10958785.
  • Rodger J, Lindsey KA, Leaver SG; et al. (2002). "Expression of ephrin-A2 in the superior colliculus and EphA5 in the retina following optic nerve section in adult rat". Eur. J. Neurosci. 14 (12): 1929–36. PMID 11860487.

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