PLA2G2D ELISA Kit (Human)

ELISA Kit

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PLA2G2D

145

Secretory calcium-dependent phospholipase A2 that primarily targets extracellular lipids, exerting anti-inflammatory and immunosuppressive functions (PubMed:10455175, PubMed:10681567). Hydrolyzes the ester bond of the fatty acyl group attached at sn-2 position of phospholipids (phospholipase A2 activity) with preference for phosphatidylethanolamines and phosphatidylglycerols over phosphatidylcholines (PubMed:10455175). In draining lymph nodes, selectively hydrolyzes diacyl and alkenyl forms of phosphatidylethanolamines, releasing omega-3 polyunsaturated fatty acids (PUFAs) such as eicosapentaenoate and docosahexaenoate that are precursors of the anti-inflammatory lipid mediators, resolvins (By similarity). During the resolution phase of acute inflammation drives docosahexaenoate-derived resolvin D1 synthesis, which suppresses dendritic cell activation and T-helper 1 immune response (By similarity). May act in an autocrine and paracrine manner (By similarity). Via a mechanism independent of its catalytic activity, promotes differentiation of regulatory T cells (Tregs) and participates in the maintenance of immune tolerance (By similarity). May contribute to lipid remodeling of cellular membranes and generation of lipid mediators involved in pathogen clearance. Displays bactericidal activity against Gram-positive bacteria by directly hydrolyzing phospholipids of the bacterial membrane (By similarity).

NP_001258743.1

This assay has high sensitivity and excellent specificity for detection of Phospholipase A2, Group IID (PLA2G2D). No significant cross-reactivity or interference between Phospholipase A2, Group IID (PLA2G2D) and analogues was observed.

Component: Amount
Anti-PLA2G2D Microplate: 96 Wells (12 x 8 Well Strips)
PLA2G2D Lyophilized Standard: 2 x 20 ng
100X Biotinylated PLA2G2D Detector Antibody: 120 uL
Avidin/HRP Conjugate: 120 uL
Standard Diluent: 1 x 20 mL
Detector Antibody Diluent: 1 x 12 mL
Conjugate Diluent: 1 x 12 mL
30X Wash Buffer: 1 x 20 mL
TMB Substrate: 1 x 9 mL
Stop Solution: 1 x 6 mL

3h

The test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to Phospholipase A2, Group IID (PLA2G2D). Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody specific to Phospholipase A2, Group IID (PLA2G2D). Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain Phospholipase A2, Group IID (PLA2G2D), biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm +/- 10nm. The concentration of Phospholipase A2, Group IID (PLA2G2D) in the samples is then determined by comparing the O.D. of the samples to the standard curve.

Intra-assay Precision (Precision within an assay): 3 samples with low, middle and high level Phospholipase A2, Group IID (PLA2G2D) were tested 20 times on one plate, respectively. Inter-assay Precision (Precision between assays): 3 samples with low, middle and high level Phospholipase A2, Group IID (PLA2G2D) were tested on 3 different plates, 8 replicates in each plate. CV(%) = SD/meanX100 Intra-Assay: CV<10% Inter-Assay: CV<12%