| Post Translational Modifications | Ubiquitinated.STUB1 likely mediates polyubiquitination of PD-L1/CD274 triggering its degradation. Ubiquitinated by MARCHF8.leading to degradation. Deubiquitinated by USP22.leading to stabilization. |
| Function | 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). The PDCD1-mediated inhibitory pathway is exploited by tumors to attenuate anti-tumor immunity and escape destruction by the immune system, thereby facilitating tumor survival. The interaction with PDCD1/PD-1 inhibits cytotoxic T lymphocytes (CTLs) effector function. The blockage of the PDCD1-mediated pathway results in the reversal of the exhausted T-cell phenotype and the normalization of the anti-tumor response, providing a rationale for cancer immunotherapy. |
| Protein Name | Programmed Cell Death 1 Ligand 1Pd-L1Pdcd1 Ligand 1Programmed Death Ligand 1B7 Homolog 1B7-H1Cd Antigen Cd274 |
| Database Links | Reactome: R-MMU-389948 |
| Cellular Localisation | Cell MembraneSingle-Pass Type I Membrane ProteinEarly Endosome MembraneRecycling Endosome Membrane |
| Alternative Protein Names | Programmed Cell Death 1 Ligand 1 proteinPd-L1 proteinPdcd1 Ligand 1 proteinProgrammed Death Ligand 1 proteinB7 Homolog 1 proteinB7-H1 proteinCd Antigen Cd274 proteinCd274 proteinB7h1 proteinPdcd1l1 proteinPdcd1lg1 proteinPdl1 protein |
Information sourced from Uniprot.org
