Recombinant Canine CTLA4 protein, C-His Tag
Product Description
Cat
IMP-470
Official Symbol
CTLA4
Product Overview
Recombinant Canine CD152 (NP_001003106.1) (Met1-Asp161) was expressed in HEK293, fused with a polyhistidine tag at the C-terminus.
Description
Cytotoxic T-lymphocyte protein 4, also known as CTLA4 and CD152, is a single-pass type I membrane protein and a member of the immunoglobulin superfamily. It is the second member of the CD28 receptor family. The ligands or counterreceptors for these two proteins are the B7 family members, CD80 (B7-1) and CD86 (B7-2). CTLA4 transmits an inhibitory signal to T cells, whereas CD28 transmits a stimulatory signal. Intracellular CTLA4 is also found in regulatory T cells and may play an important role in their functions. CD152 or cytotoxic T lymphocyte antigen-4 (CTLA-4) is an essential receptor involved in the negative regulation of T cell activation. Because of its profound inhibitory role, CD152 has been considered a sound susceptible candidate in autoimmunity and a persuasive target for cancer immunotherapy. In particular, recent evidence suggests that CD152 is also important in the homeostasis and function of a population of suppressive cells, termed regulatory T cells (Treg).
Expression System
HEK293
Species
Canine
Tag
C-His Tag
Predicted N Terminal
Lys 36
Form
Lyophilized from sterile PBS, pH 7.4. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
Molecular Mass
The recombinant canine CD152 consists 137 amino acids and predicts a molecular mass of 14.8 kDa.
Protein length
Met1-Asp161
Endotoxin
< 1.0 EU per μg protein as determined by the LAL method.
Purity
> 90 % as determined by SDS-PAGE.
Storage
Samples are stable for up to twelve months from date of receipt at -20°C to -80°C. Store it under sterile conditions at -20°C to -80°C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution
It is recommended that sterile water be added to the vial to prepare a stock solution of 0.2 ug/ul. Centrifuge the vial at 4°C before opening to recover the entire contents.
Data Sheet MSDS
For research or industrial raw materials, not for personal medical use!

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