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Invitrogen
Kit Overview
The Human PD-1 ELISA kit enables the quantification of Human PD-1 in various biological samples, including human serum, plasma, buffered solutions, and cell culture medium. This assay is specifically designed to exclusively detect both natural and recombinant forms of Human PD-1.
Principle of the assay
The Human PD-1 solid-phase sandwich ELISA (enzyme-linked immunosorbent assay) follows a unique approach to measure the amount of the target molecule. It utilizes a matched pair of antibodies to capture the target and form a sandwich complex. The first antibody is pre-coated on the microplate wells, where samples, standards, or controls are added and bind to the immobilized antibody. The second antibody, acting as the detector, is then introduced, followed by the addition of a substrate solution that generates a measurable signal upon interaction with the enzyme-antibody-target complex. The intensity of this signal directly correlates to the concentration of the target present in the original specimen.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Cell-mediated immune responses are initiated by T lymphocytes that are themselves stimulated by cognate peptides bound to MHC molecules on antig en-presenting cells (APC). T-cell activation is generally self-limited as activated T cells express receptors such as PD-1 (also known as PDCD-1) that mediate inhibitory signals from the APC. PD-1 can bind two different but related ligands, PDL-1 and PDL-2. Upon binding to either of these ligands, signals generated by PD-1 inhibit the activation of the immune response in the absence of "danger signals" such as LPS or other molecules associated with bacteria or other pathogens. Evidence for this is seen in PD1-null mice who exhibit hyperactivated immune systems and autoimmune diseases. Despite its predicted molecular weight, PD-1 often migrates at higher molecular weight in SDS-PAGE.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Gene aliases : CD279, hPD-1, hPD-l, hSLE1, PD-1, PD1, PDCD1, SLEB2
Gene ID : (Human) 5133
Gene symbol : PDCD1
Protein Aliases : CD279, hPD1, Protein PD1, sCD279, soluble CD279, programmed cell death 1 protein, Programmed cell death protein 1, Protein PD-1, systemic lupus erythematosus susceptibility 2
UniProt ID (Human) Q15116
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