Human CTLA-4 Protein, hFc tag
|Package||10μg ￥909.00 ; 50μg ￥3333.00 ; 100 μg ￥4999.00|
|Description||Recombinant human CTLA-4 protein with C-terminal human Fc tag|
|Molecular Weight||The protein has a predicted molecular mass of 39.6 kDa after removal of the signal peptide.The apparent molecular mass of CTLA4-hFC is approximately 40-55 kDa due to glycosylation.|
|Purity||The purity of the protein is greater than 95% as determined by SDS-PAGE and Coomassie blue staining.|
|Formulation & Reconstitution||Lyophilized from sterile PBS, pH 7.4. Normally 5 % - 8% trehalose is added as protectants before lyophilization. Please see Certificate of Analysis for specific instructions.|
|Storage||Store at -20°C to -80°C for 12 months in lyophilized form. After reconstitution, if not intended for use within a month, aliquot and store at -80°C (Avoid repeated freezing and thawing).Lyophilized proteins are shipped at ambient temperature.|
|Usage||Research use only|
Figure 1. Human CTLA-4 Protein, hFc Tag on SDS-PAGE under reducing condition.
Figure 2. ELISA plate pre-coated by 2 μg/ml (100 μl/well) Human CTLA4, hFc tagged protein (PME100479) can bind Anti-CTLA4 Neutralizing antibody（BME100022） in a linear range of 0.64-80.0 ng/ml.
Figure 3. HEK293 cell line transfected with irrelevant protein (B) and human B7-2 (A) were surface stained with Human CTLA4, hFc tagged protein (PME100479) 1μg/ml followed by Alexa 488-conjugated anti-human IgG secondary antibody.
Figure 4. Flow cytometry analysis with 1ug/ml Human CTLA4 Protein, hFc tag (PME100479) on Expi293 cells transfected with human B7-1 (Blue histogram) or Expi293 transfected with irrelevant protein (Red histogram).
|Background||This gene is a member of the immunoglobulin superfamily and encodes a protein which transmits an inhibitory signal to T cells. The protein contains a V domain, a transmembrane domain, and a cytoplasmic tail. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. The membrane-bound isoform functions as a homodimer interconnected by a disulfide bond, while the soluble isoform functions as a monomer. Mutations in this gene have been associated with insulin-dependent diabetes mellitus, Graves disease, Hashimoto thyroiditis, celiac disease, systemic lupus erythematosus, thyroid-associated orbitopathy, and other autoimmune diseases.|