Human Ephrin-A4/EFNA4 Protein (EPA-HM104)

  • Express System: HEK293
  • Product Tag: C-His
  • Purity: > 95% as determined by Tris-Bis PAGE;> 95% as determined by HPLC
  • Activity: The affinity constant of 0.113 uM as determined in SPR assay (Biacore T200). See testing image for detail.
  • Exact Sequence: Leu26-Gly171

Catalog: EPA-HM104

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Product Description Recombinant Human Ephrin-A4/EFNA4 Protein is expressed from HEK293 with His tag at the C-Terminus.It contains Leu26-Gly171.

Product Background

Ephrin A4 is one of the ephrin ligand molecules belonging to the tyrosine kinases receptor family. It was originally identified in a T-lymphoma cell line and seen to be expressed in human adult tissue as well as several tumor types. The cytoplasmic pattern of ephrin A4 could identify a subgroup of primary osteosarcoma patients with a high liability for progression, poor prognosis, and inferior response to chemotherapy.

Product Category

Recombinant Protein

Target

Ephrin-A4/EFNA4
Synonyms Ephrin-A4; LERK-4; EFNA4; EPLG4; EFL4

Gene/Protein ID

P52798-1

Species

Human

Exact Sequence

Leu26-Gly171
Molecular Weight The protein has a predicted MW of 17.5 kDa. Due to glycosylation, the protein migrates to 18-25 kDa based on Tris-Bis PAGE result.

Activity

The affinity constant of 0.113 uM as determined in SPR assay (Biacore T200). See testing image for detail.

Product Tag

C-His

Express System

HEK293
Purity > 95% as determined by Tris-Bis PAGE;> 95% as determined by HPLC
Endotoxin Less than 1EU per ug by the LAL method.
Form Lyophilized
Shipping Shipped at ambient temperature.
Formulation Lyophilized from 0.22um filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.
Reconstitution Centrifuge the tube before opening. Reconstituting to a concentration more than 100 ug/ml is recommended. Dissolve the lyophilized protein in distilled water.
Stability And Storage Reconstituted protein stable at -80°C for 12 months, 4°C for 1 week. Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
Human EphA7, His Tag immobilized on CM5 Chip can bind Human Ephrin-A4, His Tag with an affinity constant of 0.113 uM as determined in SPR assay (Biacore T200).
The purity of Human Ephrin-A4 is greater than 95% as determined by SEC-HPLC.
Human Ephrin-A4 on Tris-Bis PAGE under reduced condition. The purity is greater than 95%.

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