Description
Biotinylated Human CTLA-4 Protein, His, Avitag™ (MALS verified) | CT4-H82E3-25ug| Gentaur Distribution US, UK & Europe
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.
Source: Biotinylated Human CTLA-4, His, Avitag (CT4-H82E3) is expressed from human 293 cells (HEK293). It contains AA Ala 37 - Phe 162 (Accession # P16410-1).
Format: Powder.
Tag: C-10×His & C-Avi.
Expression System: HEK293.
Expression Region: Ala 37 - Phe 162.
Conjugate: Biotin-labeled.
Molecular Weight: 17.2 kDa.
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 under non-reducing (NR) condition (SDS-PAGE) due to glycosylation.
Purity: 95%.
Buffer: PBS, pH7.4.
Storage Conditions: -20℃.
Shipping Conditions: RT
