CD152 [CTLA-4] Recombinant Protein
| Code | Size | Price |
|---|
| PSI-90-417-500ug | 500ug | £597.00 |
Quantity:
Prices exclude any Taxes / VAT
Overview
Regulatory Status: RUO
Target Species: Mouse
Storage:
Stable for at least 1 year after receipt when stored at -20˚C. Working aliquots are stable for up to 3 months when stored at -20˚C.
Documents
Further Information
Additional Names:
CTLA-4
Application Note:
This recombinant proteins is for research use only.
Background:
CD152 and CD28, together with their ligands B7-1 and B7-2, constitute one of the dominant costimulatory pathways that regulate T and B cell responses. CD152 and CD28 are structurally homologous molecules that are members of the immunoglobulin (Ig) gene superfamily. Both CD152 and CD28 are composed of a single Ig V-like extracellular domain, a transmembrane domain and an intracellular domain. CD152 and CD28 are both expressed on the cell surface as disulfide-linked homodimers or as monomers. CD152 was originally identified as a gene that was specifically expressed by cytotoxic T lymphocytes. However, CD152 transcripts have since been found in both Th1 and Th2, and CD4+ and CD8+ T cell clones. Whereas, CD28 expression is constitutive on the surfaces of 95% of CD4+ T cells and 50% of CD8+ T cells and is down regulated upon T cell activation, CD152 expression is upregulated rapidly following T cell activation and peaks approximately 24 hours following activation. Although both CD152 and CD28 can bind to the same ligands, CD152 binds to B71 and B72 with 20-100-fold higher affinity than CD28.
Biological Activity:
Binds both CD80 (B7-1) and CD86 (B7-2) with high affinity and inhibits CD28 signaling competitively. Kills the target cell completely.
Buffer:
Lyophilized from 0.2um-filtered solution in PBS. Reconstitute at 1mg/ml in sterile water. Add 1X PBS to the desired protein concentration.
Fusion Tag:
Fc Tag
NCBI Gene ID #:
12477
NCBI Official Name:
cytotoxic T-lymphocyte-associated protein 4
NCBI Official Symbol:
Ctla4
NCBI Organism:
Mus musculus
Physical State:
Lyophilized
Protein Accession #:
NP_033973
Protein GI Number:
31981847
Purity:
>98% (SDS-PAGE).
Endotoxin level is less than 0.06EU/ μg protein (LAL test; Lonza).
Endotoxin level is less than 0.06EU/ μg protein (LAL test; Lonza).
Recombinant Protein Sequence:
Thr32-Gly402
Source:
NS1 cells
Swissprot #:
P60568