Call Now

Human EphB1 / EPHT2 Protein (aa 565-984, His & GST Tag)

ELK,EPHT2,Hek6,NET

Catalog Number P11963-H20B1
Organism Species Human
Host Baculovirus-Insect Cells
Synonyms ELK,EPHT2,Hek6,NET
Molecular Weight The recombinant human EPHB1 /GST chimera consists of 657 amino acids and has a calculated molecular mass of 75.3 kDa. The recombinant protein migrates as an approximately 66 kDa band in SDS-PAGE under reducing conditions.
predicted N Met
SDS-PAGE
Purity > 95 % as determined by SDS-PAGE
Protein Construction A DNA sequence encoding the human EPHB1 (AAI11745.1) (Arg565-Ala984) was fused with the N-terminal polyhistidine-tagged GST tag at the N-terminus.
Bio-activity The specific activity was determined to be 140 nmol/min/mg using Poly(Glu:Tyr) 4:1 as substrate.
Research Area Cancer |Oncoprotein & suppressor & biomarker |Tumor suppressor
Formulation Supplied as sterile 20mM Tris, 500mM NaCl, 3mM DTT, pH 8.0, 10% gly
1. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
Background Ephrin type-B receptor 1, also known as EphB1, belongs to the ephrin receptor subfamily of the protein-tyrosine kinase family which 16 known receptors (14 found in mammals) are involved: EPHA1, EPHA2, EPHA3, EPHA4, EPHA5, EPHA6, EPHA7, EPHA8, EPHA9, EPHA10, EPHB1, EPHB2, EPHB3, EPHB4, EPHB5, EPHB6. EphB2 receptor tyrosine kinase phosphorylates syndecan-2 and that this phosphorylation event is crucial for syndecan-2 clustering and spine formation. The Eph family of receptor tyrosine kinases (comprising EphA and EphB receptors) has been implicated in synapse formation and the regulation of synaptic function and plasticity6. Ephrin receptors are components of cell signalling pathways involved in animal growth and development, forming the largest sub-family of receptor tyrosine kinases (RTKs). Ligand-mediated activation of Ephs induce various important downstream effects and Eph receptors have been studied for their potential roles in the development of cancer. EphB receptor tyrosine kinases are enriched at synapses, suggesting that these receptors play a role in synapse formation or function. We find that EphrinB binding to EphB induces a direct interaction of EphB with NMDA-type glutamate receptors. This interaction occurs at the cell surface and is mediated by the extracellular regions of the two receptors, but does not require the kinase activity of EphB.
Reference
  • Dalva MB, et al. (2000) EphB receptors interact with NMDA receptors and regulate excitatory synapse formation. Cell. 103(6): 945-56.
  • Takasu MA, et al. (2002) Modulation of NMDA receptor-dependent calcium influx and gene expression through EphB receptors. Science. 295(5554): 491-5.
  • Adams RH, et al. (1999) Roles of ephrinB ligands and EphB receptors in cardiovascular development: demarcation of arterial/venous domains, vascular morphogenesis, and sprouting angiogenesis. Genes Dev. 13(3): 295-306.