Programmed cell death protein 1, CD279, CD279 antigen, hPD 1, hPD-1, hSLE1, PD 1, PD1, PDCD 1, PDCD1, PDCD1_HUMAN, Programmed cell death 1, Protein PD 1, Protein PD-1, SLEB2, Systemic lupus erythematosus susceptibility 2.
Programmed cell death protein 1 (PDCD1) is an immune-inhibitory receptor expressed in activated T cells, it is involved in the regulation of T-cell functions, including those of effector CD8+ T cells. In addition, this protein can also promote the differ