CTLA4
(Cytotoxic T-Lymphocyte-Associated Protein 4 (CTLA4))
Type de proteíne
Recombinant
Origine
Humain
Source
HEK-293 Cells
Purification/Conjugué
Cette CTLA4 protéine est marqué à la His-Avi Tag,Biotin.
Séquence
Lys36-Asp161
Pureté
> 95% as determined by Tris-Bis PAGE,> 95% as determined by HPLC
Stérilité
0.22 μm filtered
niveau d'endotoxine
Less than 1EU per μg by the LAL method.
Biological Activity Comment
Immobilized Biotinylated Human CTLA-4, His Tag at 0.5μg/ml (100μl/Well) on the plate. Dose response curve for Anti-CTLA-4 Antibody, hFc Tag with the EC50 of 15.4ng/ml determined by ELISA. See testing image for detail.
CTLA4
Origine: Humain
Hôte: HEK-293 Cells
Recombinant
The purity of the protein is greater than 95 % as determined by SDS-PAGE and Coomassie blue staining.
ELISA, FACS
CTLA4
Origine: Cobaye
Hôte: Yeast (Pichia pastoris)
Recombinant
> 90 % as determined by reducing SDS-PAGE.
Active
Restrictions
For Research Use only
Format
Lyophilized
Reconstitution
Centrifuge tubes before opening. Reconstituting to a concentration more than 100 μg/mL is recommended (usually we use 1 mg/mL solution for lyophilization). Dissolve the lyophilized protein in distilled water.
Buffer
Lyophilized from 0.22μm filtered solution in PBS ( pH 7.4). Normally 5 % trehalose is added as protectant before lyophilization.
Stock
4 °C,-80 °C
Stockage commentaire
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.
Date de péremption
12 months
Antigène
CTLA4
(Cytotoxic T-Lymphocyte-Associated Protein 4 (CTLA4))
CTLA-4 Protein, CTLA4 Protein, CD152 Protein, Cd152 Protein, Ctla-4 Protein, Ly-56 Protein, CD Protein, CELIAC3 Protein, GRD4 Protein, GSE Protein, IDDM12 Protein, sCTLA4 Protein, cytotoxic T-lymphocyte associated protein 4 Protein, cytotoxic T-lymphocyte-associated protein 4 Protein, CTLA4 Protein, Ctla4 Protein
Sujet
CTLA4, CD152, ICOS, CELIAC3, GRD4, GSE, ALPS5, IDDM12,CTLA-4 (cytotoxic T-lymphocyte-associated protein 4), also known as CD152, is a protein receptor that, functioning as an immune checkpoint, downregulates immune responses.CTLA4 is constitutively expressed in regulatory T cells but only upregulated in conventional T cells after activation - a phenomenon which is particularly notable in cancers. It acts as an "off" switch when bound to CD80 or CD86 on the surface of antigen-presenting cells.
Poids moléculaire
16.3 kDa. Due to glycosylation, the protein migrates to 25-30 kDa based on Tris-Bis PAGE result.