DATASHEET
Host:
Rabbit
Target Protein:
HCST
Immunogen Range:
19-48/93
Clonality:
Polyclonal
Isotype:
IgG
Entrez Gene:
10870
Swiss Prot:
Q9UBK5
Source:
KLH conjugated synthetic peptide derived from human HCST
Purification:
Purified by Protein A.
Storage Buffer:
0.01M TBS(pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol.
Storage:
Shipped at 4°C. Store at -20°C for one year. Avoid repeated freeze/thaw cycles.
Background:
Transmembrane adapter protein which associates with KLRK1 to form an activation receptor KLRK1-HCST in lymphoid and myeloid cells; this receptor plays a major role in triggering cytotoxicity against target cells expressing cell surface ligands such as MHC class I chain-related MICA and MICB, and UL16-binding proteins (ULBPs); these ligands are up-regulated by stress conditions and pathological state such as viral infection and tumor transformation. Functions as docking site for PI3-kinase PIK3R1 and GRB2. Interaction of ULBPs with KLRK1-HCST triggers calcium mobilization and activation of the PIK3R1, MAP2K/ERK, and JAK2/STAT5 signaling pathways. Both PIK3R1 and GRB2 are required for full KLRK1-HCST-mediated activation and ultimate killing of target cells. In NK cells, KLRK1-HCST signaling directly induces cytotoxicity and enhances cytokine production initiated via DAP12/TYROBP-associated receptors. In T-cells, it provides primarily costimulation for TCR-induced signals. KLRK1-HCST receptor plays a role in immune surveillance against tumors and is required for cytolysis of tumors cells; indeed, melanoma cells that do not express KLRK1 ligands escape from immune surveillance mediated by NK cells.
VALIDATION IMAGES
Paraformaldehyde-fixed, paraffin embedded rat spleen tissue; Antigen retrieval by boiling in sodium citrate buffer (pH6.0) for 15min; Block endogenous peroxidase by 3% hydrogen peroxide for 20 minutes; Blocking buffer (normal goat serum) at 37°C for 30min; Antibody incubation with HCST Polyclonal Antibody, Unconjugated (bs-15430R) at 1:400 overnight at 4°C, followed by a conjugated secondary for 20 minutes and DAB staining.
PANC-1 lysates probed with HCST Polyclonal Antibody, Unconjugated (bs-15430R) at 1:300 dilution and 4˚C overnight incubation. Followed by conjugated secondary antibody incubation at 1:20000 for 60 min at 37˚C