P-Selectin (SELP) ELISA Kit for Human

Background: P-selectin, also called GMP-140, CD62, or selectin P, is a 140-kD adhesion molecule that in humans is encoded by the SELP gene. It is located on chromosome 1q21-q24, spans>50 kb and contains 17 exons in human. It is constitutively expressed on megakaryocytes (the precursor of platelets) and endothelial cells. P-selectin plays an essential role in the initial recruitment of leukocytes (white blood cells) to the site of injury during inflammation. Ligands for P-selectin on eosinophils and neutrophils are similar sialylated, protease-sensitive, endo-beta-galactosidase-resistant structures, clearly different than those reported for E-selectin, and suggest disparate roles for P-selectin and E-selectin during recruitment during inflammatory responses.

Principle of the Assay: This kit was based on sandwich enzyme-linked immune-sorbent assay technology. Anti- P-Selectin polyclonal antibody was pre-coated onto 96-well plates. And the biotin conjugated anti- P-Selectin polyclonal antibody was used as detection antibodies. The standards, test samples and biotin conjugated detection antibody were added to the wells subsequently, and wash with wash buffer. Avidin-Biotin-Peroxidase Complex was added and unbound conjugates were washed away with wash buffer. TMB substrates were used to visualize HRP enzymatic reaction. TMB was catalyzed by HRP to produce a blue color product that changed into yellow after adding acidic stop solution. The density of yellow is proportional to the P-Selectin amount of sample captured in plate. Read the O.D. absorbance at 450nm in a microplate reader, and then the concentration of P-Selectin can be calculated.

Small volumes of SELP elisa kit vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.

MBS355417 is a ready-to-use microwell, strip-or-full plate ELISA (enzyme-linked immunosorbent assay) Kit for analyzing the presence of the P-Selectin (SELP) ELISA Kit target analytes in biological samples. The concentration gradients of the kit standards or positive controls render a theoretical kit detection range in biological research samples containing SELP. The ELISA analytical biochemical technique of the MBS355417 kit is based on SELP antibody-SELP antigen interactions (immunosorbency) and an HRP colorimetric detection system to detect SELP antigen targets in samples. The ELISA Kit is designed to detect native, not recombinant, SELP. Appropriate sample types may include undiluted body fluids and/or tissue homogenates, secretions. Quality control assays assessing reproducibility identified the intra-assay CV (%) and inter-assay CV(%).