Programmed cell death protein 1 (Pdcd1) is an immune-inhibitory receptor which delivers inhibitory signals upon binding to ligands CD274/PDCD1L1 and CD273/PDCD1LG2, playing a critical role in induction and maintenance of immune tolerance to self. Pdcd1plays a role in anti-tumor immunity and is involved in safeguarding against autoimmunity, but Pdcd1-mediated inhibitory pathway is also exploited by tumors to attenuate anti-tumor immunity. PD-1 Protein, Rat (HEK293, His) is the recombinant rat-derived PD-1 protein, expressed by HEK293 , with C-His labeled tag.
