IMP-7771

PDCD1

Purified recombinant protein of mouse programmed cell death 1 (PD-1 / PDCD1), with C-terminal DDK/His tag, expressed in human cells.

Inhibitory receptor on antigen activated T-cells that plays a critical role in induction and maintenance of immune tolerance to self (PubMed: 10485649, PubMed: 11698646, PubMed: 11209085, PubMed: 21300912). Delivers inhibitory signals upon binding to ligands, such as CD274/PDCD1L1 and CD273/PDCD1LG2 (PubMed: 11015443, PubMed: 11224527, PubMed: 22641383, PubMed: 18287011, PubMed: 18641123). Following T-cell receptor (TCR) engagement, PDCD1 associates with CD3-TCR in the immunological synapse and directly inhibits T-cell activation (PubMed: 22641383). 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 (PubMed: 11698646, PubMed: 22641383). The PDCD1-mediated inhibitory pathway is exploited by tumors to attenuate anti-tumor immunity and facilitate tumor survival (By similarity).[UniProtKB/Swiss-Prot Function]

HEK293

Mouse

C-DDK/His

PBS, pH7.4, 10% glycerol

19 kDa

Leu25-Gln167

> 80% as determined by SDS-PAGE and Coomassie blue staining.

Store at -80 centigrade.
Stability: Stable for 12 months from the date of receipt of the product under proper storage and handling conditions. Avoid repeated freeze-thaw cycles.

> 50 μg/mL as determined by microplate BCA method.