Scientific background: |
Ephrin Receptor EphB3, is also known as human embryo kinase2(HEK2) or Eph-like tyrosine kinase2(ETK2). HEK2 ,which is a member of the EPH/ELK family of tyrosine kinases, encodes a 998-amino acid polypeptide having a single putative transmembrane domain, a secretory signal sequence, and 2 fibronectin repeats. The EPHB3 gene is mapped to human chromosome 3q21-qter. HEK2 interacts with 2 ligands of EPH-related kinases (LERKs), namely, LERK2 (EFNB1) and LERK5 (EFNB2). Coincubation of HEK2- and LERK2-expressing cells induces cell-cell adhesion and aggregation. Additionally, coexpression of HEK2 and LERK2 results in reduced kinase activity of HEK2. |
References: |
1.Bohme, B., Holtrich, U., Wolf, G., Luzius, H., Grzeschik, K.-H., Strebhardt, K., Rubsamen-Waigmann, H.PCR mediated detection of a new human receptor-tyrosine-kinase, HEK 2.Oncogene 8: 2857-2862, 1993.
2.Bohme, B., VandenBos, T., Cerretti, D. P., Park, L. S., Holtrich, U., Rubsamen-Waigmann, H., Strebhardt, K.Cell-cell adhesion mediated by binding of membrane-anchored ligand LERK-2 to the EPH-related receptor human embryonal kinase 2 promotes tyrosine kinase activity.J. Biol. Chem. 271: 24747-24752, 1996.
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