|The Human Lp-PLA2 pla2g7 (Catalog #MBS280511) is an ELISA Kit and is intended for research purposes only. The product is available for immediate purchase. The MBS280511 ELISA Kit recognizes Human (General) Lp-PLA2.
The Lp-PLA2 pla2g7 product has the following accession number(s) (GI #270133071) (NCBI Accession #NP_001161829.1) (Uniprot Accession #Q13093). Researchers may be interested in using Bioinformatics databases such as those available at The National Center for Biotechnology Information (NCBI) website for more information about accession numbers and the proteins they represent. Even researchers unfamiliar with bioinformatics databases will find the NCBI databases to be quite user friendly and useful.
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Lipoprotein-associated phospholipase A2 (Lp-PLA2, also known as platelet activating factor acetyl-hydrolase), is a relatively recent marker that has emerged as a major, independent predictor of CHD. Lp-PLA2 is an active phospholipase that circulates in plasma bound to LDL, and it appears to act almost exclusively on oxidized LDL to generate lysophosphatidyl-choline, which is proinflammatory and is considered to be atherogenic. Thus, Lp-PLA2 represents an interesting link between lipoproteinoxidation and vascular inflammation, which likely explain its strong, independent association with CHD risk. Data from the recent ARIC study have indicated that the predictive power of Lp-PLA2 is attenuated after adjustment for multiple established risk factors.
Principle of the Assay: This assay employs a two-site sandwich ELISA to quantitate LP-PLA2 in samples. An antibody specific for LP-PLA2 has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and anyLP-PLA2 present is bound by the immobilized antibody. After removing any unbound substances, a biotin-conjugated antibody specific for LP-PLA2 is added to the wells. After washing, Streptavidin conjugated Horseradish Peroxidase (HRP) is added to the wells. Following a wash to remove any unbound avidin-enzyme reagent, a substrate solution is added to the wells and color develops in proportion to the amount of LP-PLA2 bound in the initial step. The color development is stopped and the intensity of the color is measured.
Samples: Serum, Plasma, Other biological fluids
Assay Type: Sandwich. Sample Volume: 1-200 uL
Precision: Intra-assay Precision (Precision within an assay)
Three samples of known concentration were tested twenty times on one plate to assess intra-assay precision.
Inter-assay Precision (Precision between assays)
Three samples of known concentration were tested in forty separate assays to assess inter-assay precision.
CV (%) = SD/meanX100
Detection Wavelength: 450 nm. Human Lipoprotein-associated phospholipase A2 (Lp-PLA2) ELISA Kit or ELISA (enzyme-linked immunosorbant assays) Kits in general, are a valuable research tool for a myriad of applications in a range of scientific settings. Currently, three major types of ELISA formats are used by researchers: sandwich, competitive and indirect. Most commercially available ELISA Kits are sandwich or competitive. Commercially available ELISA Kits contain wells that have been pre-coated with the capture antibody. Please refer to the product manual for the ELISA format of your specific kit.