Learn More
ACROBiosystems Biotinylated Human CTLA-4 Protein, His,Avitag™
MALS verified
Marke: ACROBiosystems CT4-H82E3-200ug
Weitere Details : Netto-Gewicht : 0.00010kg
Beschreibung
CTLA-4 (Cytotoxic T-Lymphocyte Antigen 4) is also known as CD152 (Cluster of differentiation 152), is a protein receptor that downregulates the immune system. CTLA4 is a member of the immunoglobulin superfamily, which is expressed on the surface of Helper T cells and transmits an inhibitory signal to T cells. The protein contains an extracellular V domain, a transmembrane domain, and a cytoplasmic tail. Alternate splice variants, encoding different isoforms. CTLA4 is similar to the T-cell co-stimulatory protein, CD28, and both molecules bind to CD80 and CD86, also called B7-1 and B7-2 respectively, on antigen-presenting cells. 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 be important to their function. T cell activation through the T cell receptor and CD28 leads to increased expression of CTLA-4, an inhibitory receptor for B7 molecules. Fusion proteins of CTLA4 and antibodies (CTLA4-Ig) have been used in clinical trials for rheumatoid arthritis.
This protein carries a polyhistidine tag at the C-terminus, followed by an Avi tag. The protein has a calculated MW of 17.2 kDa. As a result of glycosylation, the protein migrates as 22-30 kDa under reducing (R) condition, and 37-45 kDa under non-reducingSpezifikation
17.2 kDa | |
Biotinylated Human CTLA-4, His,Avitag (CT4-H82E3) is expressed from human 293 cells (HEK293). It contains AA Ala 37 - Phe 162 (Accession # Q6GR94-1). | |
-20°C | |
CTLA-4 | |
Human | |
PBS, pH7.4 | |
HEK293 | |
MABSol™ Biotin Labeled Proteins |
200 μg | |
Ala 37 - Phe 162 | |
CTLA4,CD152 | |
Precision Avi | |
His Tag and Avi Tag | |
Less than 1.0 EU / μg by the LAL method. | |
Powder | |
>95% as determined by SDS-PAGE |