

| Catalog No. | HS870014 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Species reactivity | Human | ||||||||
| Applications | ELISA, IHC, WB | ||||||||
| Host species | Rabbit | ||||||||
| Isotype | IgG | ||||||||
| Clonality | Polyclonal | ||||||||
| Immunogen | E. coli - derived recombinant Human CD279/PDCD1/PD1 (Leu41-Ala132). | ||||||||
| Target | Programmed cell death protein 1, Protein PD-1, hPD-1, PD1, PDCD1, CD279 | ||||||||
| Purification | Purified by antigen affinity column. | ||||||||
| Accession | Q15116 | ||||||||
| Form | Liquid | ||||||||
| Storage buffer | 0.01M PBS, pH 7.4, 50% Glycerol, 0.05% Proclin 300. Please refer to the specific buffer information in the hardcopy of datasheet or the lot-specific COA. |
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| Product Usage Information |
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| Stability and Storage | Use a manual defrost freezer and avoid repeated freeze thaw cycles. Store at 2 to 8°C for frequent use. Store at -20 to -80°C for twelve months from the date of receipt. | ||||||||
| Background | Programmed cell death protein 1 (CD279/PD-1) is a ~31 kDa protein. Inhibitory receptor on antigen activated T-cells that plays a critical role in induction and maintenance of immune tolerance to self. Delivers inhibitory signals upon binding to ligands CD274/PDCD1L1 and CD273/PDCD1LG2. Following T-cell receptor (TCR) engagement, PDCD1 associates with TCR-CD3 in the immunological synapse and directly inhibits T-cell activation. Suppresses T-cell activation through the recruitment of PTPN11/SHP-2: following ligand-binding, PDCD1 is phosphorylated within the ITSM motif, leading to the recruitment of the protein tyrosine phosphatase PTPN11/SHP-2 that mediates dephosphorylation of key TCR proximal signaling molecules, such as ZAP70, PRKCQ/PKCtheta and CD247/CD3zeta. CD279 is the therapeutic target of pembrolizumab (Keytruda) and nivolumab (Opdivo). 1. Fife, BT. et al. (2011) Annals of the New York Academy of Sciences 1217, 45-59. PMID: 21276005 2. Bardhan, K. et al. (2019) Scientific reports 9, 17252. PMID: 31754127 3. Patsoukis, N. et al. (2020) Communications biology 3, 128. PMID: 32184441 4. Xiao, X. et al. (2023) Nature communications 14, 2859. PMID: 37208329 5. Zak, KM. et al. (2015) Structure (London, England : 1993) 23, 2341-2348. PMID: 26602187 | ||||||||
| Note | For research use only. |

Western blot analysis was performed using anti-Human CD279/PDCD1/PD1 polyclonal antibody at 1ug/mL on recombinant Human CD279/PDCD1/PD1 (Catalog No. HS870012).




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