Protein A/G purified from cell culture supernatant.
Accession号
Q9NZQ7
状态
Liquid
保存溶液
0.01M PBS, pH 7.4.
Please refer to the specific buffer information in the hardcopy of datasheet or the lot-specific COA.
稳定性和存储
Use a manual defrost freezer and avoid repeated freeze-thaw cycles. Store at 4°C short term (1-2 weeks). Store at -20°C 12 months. Store at -80°C long term.
背景
Programmed cell death 1 ligand 1 (CD274/PD-L1) is a ~33 kDa protein. Plays a critical role in induction and maintenance of immune tolerance to self. As a ligand for the inhibitory receptor PDCD1/PD-1, modulates the activation threshold of T-cells and limits T-cell effector response. Through a yet unknown activating receptor, may costimulate T-cell subsets that predominantly produce interleukin-10 (IL10). Can also act as a transcription coactivator: in response to hypoxia, translocates into the nucleus via its interaction with phosphorylated STAT3 and promotes transcription of GSDMC, leading to pyroptosis. CD274 is the therapeutic target of atezolizumab (Tecentriq) and durvalumab (Imfinzi).
1. Freeman, GJ. et al. (2000) The Journal of experimental medicine 192, 1027-34. PMID: 11015443
2. Mezzadra, R. et al. (2017) Nature 549, 106-110. PMID: 28813410
