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Product Details
Synonym
CTLA4, CD152
Source
Human CTLA-4 Protein, Mouse IgG2a Fc Tag (CT4-H52A4) is expressed from human 293 cells (HEK293). It contains AA Ala 37 - Phe 162 (Accession # P16410-1).
Predicted N-terminus: Ala 37
Request for sequenceMolecular Characterization
Other Tags and Version Biotin & Other Labeled Version
This protein carries a mouse IgG2a Fc tag at the C-terminus. The protein has a calculated MW of 40.6 kDa. The protein migrates as 50 kDa on a SDS-PAGE gel under reducing (R) condition due to glycosylation and 100 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under non-reducing (NR) condition.
Endotoxin
Less than 0.01 EU per μg by the LAL method / rFC method.
Purity
>95% as determined by SDS-PAGE.
>95% as determined by SEC-MALS.
Formulation
Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 100 mM Glycine, pH7.5 with trehalose as protectant.
Contact us for customized product form or formulation.
Reconstitution
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
Storage
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
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Performance Data
SDS-PAGE
Human CTLA-4 Protein, Mouse IgG2a Fc Tag on SDS-PAGE under reducing (R) and non-reducing (NR) conditions. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95% (With Star Ribbon Pre-stained Protein Marker).
SEC-MALS
The purity of Human CTLA-4 Protein, Mouse IgG2a Fc Tag (Cat. No. CT4-H52A4) is more than 95% and the molecular weight of this protein is around 80-100 kDa verified by SEC-MALS.
Report
Bioactivity-ELISA
Immobilized Human B7-1, Fc Tag (Cat. No. B71-H5259) at 2 μg/mL (100 μL/well) can bind Human CTLA-4 Protein, Mouse IgG2a Fc Tag (Cat. No. CT4-H52A4) with a linear range of 0.06-1 ng/mL (QC tested).
Protocol
Immobilized Human B7-2, Fc Tag (Cat. No. CD6-H5257) at 2 μg/mL (100 μL/well) can bind Human CTLA-4 Protein, Mouse IgG2a Fc Tag (Cat. No. CT4-H52A4) with a linear range of 0.5-7.8 ng/mL (Routinely tested).
Protocol
Immobilized Ipilimumab at 5 μg/mL (100 μL/well) can bind Human CTLA-4 Protein, Mouse IgG2a Fc Tag (Cat. No. CT4-H52A4) with a linear range of 0.1-0.8 ng/mL (Routinely tested).
Protocol
Bioactivity-BLI
Loaded Human CTLA-4 Protein, Mouse IgG2a Fc Tag (Cat. No. CT4-H52A4) on Protein A Biosensor, can bind Human B7-1, His Tag (Cat. No. B71-H5228) with an affinity constant of 0.52 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
Loaded Human CTLA-4 Protein, Mouse IgG2a Fc Tag (Cat. No. CT4-H52A4) on Protein A Biosensor, can bind Human B7-2, His Tag (Cat. No. CD6-H5223) with an affinity constant of 1.6 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
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Background
Recent Advances
Drug Development Progress- English Name：
Cytotoxic T-Lymphocyte-Associated Antigen 4
- Category：
- Approved Drugs：
5 Details
- Drugs in Clinical Trials：
65 Details
- Highest Development Stage：
Approved
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Drug Candidate Licensing
