Human CD28H/IGPR-1 Protein (CD8-HM18H)

  • Express System: HEK293
  • Product Tag: C-His
  • Purity: > 95% as determined by Tris-Bis PAGE;> 95% as determined by HPLC
  • Activity: Immobilized Human CD28H, His Tag at 2ug/ml (100ul/well) on the plate. Dose response curve for Human B7-H7, hFc Tag with the EC50 of 52.7ng/ml determined by ELISA. See testing image for detail.
  • Exact Sequence: Leu23-Gly150

Catalog: CD8-HM18H

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Product Description Recombinant Human CD28H/IGPR-1 Protein is expressed from HEK293 with His tag at the C-Terminus.It contains Leu23-Gly150.

Product Background

CD28H is constitutively expressed on all naive T cells. Repetitive antigenic exposure, however, induces a complete loss of CD28H on many T cells, and CD28H negative T cells have a phenotype of terminal differentiation and senescence. After extensive screening in a receptor array, a B7-like molecule, B7 homologue 5 (B7-H5), was identified as a specific ligand for CD28H.

Product Category

Recombinant Protein

Target

CD28H/IGPR-1
Synonyms TMIGD2; IGPR1; IGPR-1; CD28H; TPC1

Gene/Protein ID

Q96BF3-1

Species

Human

Exact Sequence

Leu23-Gly150
Molecular Weight The protein has a predicted MW of 15.1 kDa. Due to glycosylation, the protein migrates to 42-52 kDa based on Tris-Bis PAGE result.

Activity

Immobilized Human CD28H, His Tag at 2ug/ml (100ul/well) on the plate. Dose response curve for Human B7-H7, hFc Tag with the EC50 of 52.7ng/ml determined by ELISA. 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.
Immobilized Human CD28H, His Tag at 2ug/ml (100ul/well) on the plate. Dose response curve for Human B7-H7, hFc Tag with the EC50 of 52.7ng/ml determined by ELISA.
The purity of Human CD28H is greater than 95% as determined by SEC-HPLC.
Human CD28H on Tris-Bis PAGE under reduced condition. The purity is greater than 95%.

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