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Mouse EphA2 Protein (His Tag)

AW545284,Eck,Myk2,Sek-2,Sek2

Catalog Number P50586-M08H
Organism Species Mouse
Host Human Cells
Synonyms AW545284,Eck,Myk2,Sek-2,Sek2
Molecular Weight The secreted recombinant mouse EPHA2 consists of 523 amino acids and has a predicted molecular mass of 58 kDa. In SDS-PAGE under reducing conditions, the apparent molecular mass of rmEPHA2 is approximately 65 kDa due to glycosylation.
predicted N Gln 24
SDS-PAGE
Purity > 98 % as determined by SDS-PAGE
Protein Construction A DNA sequence encoding the mouse EPHA2 (NP_034269.2) extracellular domain (Met 1-Asn 535) was expressed, fused with a polyhistidine tag at the C-terminus.
Bio-activity Measured by its binding ability in a functional ELISA.
1. Immobilized mouse EphA2 at 2μg/ml (100 μl/well) can bind mouse EphrinA1 with a linear range of 0.16-20 ng/ml.
2. Immobilized mouse EphA2 at 2 μg/ml (100 μl/well) can bind human EphrinA1 with a linear range of 0.8-20 ng/ml.
Research Area Cancer |Signal transduction |Akt Pathway |Receptor Tyrosine Kinases (RTKs) in the Akt Pathway
Formulation Lyophilized from sterile 20mM Tris, 150mM NaCl, pH 7.5
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 Eph receptor A2 (Ephrin type-A receptor 2 or EphA2) is a member of the ephrin receptor subfamily of the protein-tyrosine kinase family. The Eph receptors' corresponding family of ligands are the ephrins anchored to cell surfaces. The ephrins and Eph receptors are implicated as positional labels that may guide the development of neural topographic maps. They have also been found implicated in embryonic patterning, neuronal targeting, vascular development and adult neovascularization. The large family of ligands and receptors may make a major contribution to the accurate spatial patterning of connections and cell position in the nervous system. Furthermore, elevated expression of Eph receptors and ephrin ligands is associated with tumors and associated tumor vasculature, suggesting the Eph receptors and ephrin ligands also play critical roles in tumor angiogenesis and tumor growth. Unlike most Eph kinases, which are primarily expressed during development, EphA2 is primarily found in adult human epithelial cells. The cellular functions of EphA2 may be regulating cell growth, survival, migration, and angiogenesis.Unlike other receptor tyrosine kinases, ligand binding is not necessary for EphA2. Rather, the ligand appears to regulate EphA2 subcellular localization and its interactions with downstream adapter and signaling proteins. Eph receptor A2(EphA2) has been demonstrated to critically regulate tumor cell growth, migration and invasiveness. Eph receptor A2(EphA2) is frequently overexpressed and functionally altered in aggressive tumor cells, and that these changes promote metastatic character.
Reference
  • Flanagan JG, et al. (1998) The ephrins and Eph receptors in neural development. Annu Rev Neurosci. 21: 309-45.
  • Cheng N, et al. (2002) The ephrins and Eph receptors in angiogenesis. Cytokine Growth Factor Rev. 13(1): 75-85.
  • Pratt RL, et al. (2002) Activation of the EphA2 tyrosine kinase stimulates the MAP/ERK kinase signaling cascade. Oncogene. 21(50): 7690-9.
  • Jennifer Walker-Daniels, et al. (2003) Differential Regulation of EphA2 in Normal and Malignant Cells. Am J Pathol. 162(4): 1037-1042.