Biotinylated Human CTLA-4 Protein, His,Avitag? (MALS verified) [CT4-H82E3]

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Synonyms	-
Characteristics	This protein carries a polyhistidine tag at the C-terminus, followed by an Avi tag (Avitag?). The protein has a calculated MW of 17.2 kDa. The protein migrates as 22-30 kDa under reducing (R) condition, and 37-45 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under non-reducing (NR) condition (SDS-PAGE) due to glycosylation.
Endotoxin Level	N/A
Purity	95%
Description	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. Fusion proteins of CTLA4 and antibodies (CTLA4-Ig) have been used in clinical trials for rheumatoid arthritis.
Reference	-
URL	https://www.acrobiosystems.com/products/protein/ctla-4-human-ct4-h82e3

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