Human EphA4 Protein, His Tag

Receptor tyrosine kinase which binds promiscuously membrane-bound ephrin-A family ligands residing on adjacent cells, leading to contact-dependent bidirectional signaling into neighboring cells. The signaling pathway downstream of the receptor is referred to as forward signaling while the signaling pathway downstream of the ephrin ligand is referred to as reverse signaling. Activated by the ligand ephrin-A1/EFNA1 regulates migration, integrin-mediated adhesion, proliferation and differentiation of cells. Regulates cell adhesion and differentiation through DSG1/desmoglein-1 and inhibition of the ERK1/ERK2 (MAPK3/MAPK1, respectively) signaling pathway. Engaged by the ligand ephrin-A5/EFNA5 may regulate lens fiber cells shape and interactions and be important for lens transparency development and maintenance. With ephrin-A2/EFNA2 may play a role in bone remodeling through regulation of osteoclastogenesis and osteoblastogenesis.

Product Specifications

Background

Specifications

This protein carries a polyhistidine tag at the C-terminus. The protein has a calculated MW of 60.3 kDa. The protein migrates as 65-80 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

Accession Number

P54764-1

Expression Region

Val 20 - Thr 547

Host

HEK293

Target

EphA4

Conjugation

Unconjugated

Tag

C-10xHis

Source

Human

Stability

-20°C to -70°C for 12 months in lyophilized state; -70°C for 3 months under sterile conditions after reconstitution. For long term storage, the product should be stored at lyophilized state at -20°C or lower.

Endotoxin

1.0 EU per μg

Purity

95%

Bioactivity

Immobilized Human EphA4, His Tag (Cat. No. EP4-H52H8) at 5 μg/mL (100 μL/well) can bind Human Ephrin-A4, Fc Tag (Cat. No. EA4-H5250) with a linear range of 0.6-5 ng/mL (QC tested).