Recombinant Human EFNA4 Protein, C-hFc-tagged
Product Description
Cat
IMP-4444
Official Symbol
EFNA4
Product Overview
Recombinant human EFNA4 (NP_005218.1)(Met1-Gly171) was expressed with the Fc region of human IgG1 at the C-terminus.
Description
EPH-related receptor tyrosine kinase ligand 4 (Ephrin-A4) also known as EFNA4, is a member of the Ephrin family. The Eph family receptor interacting proteins (ephrins) are a family of proteins that serve as the ligands of the Eph receptor, which compose the largest known subfamily of receptor protein-tyrosine kinases (RTKs). Eph/ephrin interactions are implicated in axon guidance, neural crest cell migration, establishment of segmental boundaries, and formation of angiogenic capillary plexi. Ephrin subclasses are further distinguished by their mode of attachment to the plasma membrane: ephrin-A ligands bind EphA receptors and are anchored to the plasma membrane via a glycosylphosphatidylinositol (GPI) linkage, whereas ephrin-B ligands bind EphB receptors and are anchored via a transmembrane domain. An exception is the EphA4 receptor, which binds both subclasses of ephrins. Ephrin-A4/EFNA4 functions as a cell surface GPI-bound ligand for Eph receptor, a family of receptor tyrosine kinases which are crucial for migration, repulsion and adhesion during neuronal, vascular and epithelial development.
Expression System
HEK293
Species
Human
Tag
C-hFc
Predicted N Terminal
Glu 26
Form
Lyophilized from sterile PBS, pH 7.4, 5 % trehalose, 5% mannitol and 0.01% Tween80.
Molecular Mass
The recombinant human EFNA4/Fc comprises 387 amino acids and has a predicted molecular mass of 43.4 kDa. The apparent molecular mass of the protein is approximately 48.1 and 34.9 kDa in SDS-PAGE under reducing conditions.
Protein length
Met1-Gly171
Endotoxin
< 1.0 EU/μg of the protein as determined by the LAL method
Purity
> 90 % as determined by SDS-PAGE
Storage
Samples are stable for up to twelve months from date of receipt at -20 to -80 centigrade.
Store it under sterile conditions at -20 to -80 centigrade. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution
A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
SDS-PAGE
SDS-PAGE

Bioactivity-ELISA 1
Bioactivity-ELISA

Measured by its binding ability in a functional ELISA. Immobilized human EPHA7-His at 10 μg/mL(100 μL/well) can bind human EFNA4-Fc (NEW). The EC50 of EFNA4-Fc (NEW) is 2.6-6.1 ng/mL.

Data Sheet MSDS
For research or industrial raw materials, not for personal medical use!

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