CTLA-4 ELISA Kit

Storage Instruction:Store the kit at 4°C.
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 widely expressed with highest levels in lymphoid tissues. CTLA4 contains a extracellular V domain, a transmembrane domain, and a cytoplasmic tail. Alternate splice variants encoding different isoforms have been characterized. CTLA4 is similar to the T-cell costimulatory protein CD28 since both of the molecules bind to CD80 and CD86 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 play an important role in their functions.