For the measurement of sPLA2 activity
Features
  • Measure sPLA2 activity
  • Assay 46 samples in duplicate
  • Measure sPLA2 activity down to 0.02 U/ml
  • Plate-based colorimetric measurement (405-414 nm)
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sPLA2 Assay Kit

Item No. 765001

Technical Information
Synonyms
  • Secretory Phospholipase A2 (Type IIA) Assay Kit
Shipping & Storage Information
Storage
-20°C
Shipping
Wet ice in continental US; may vary elsewhere
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    Product Description

    Phospholipase A2 (PLA2) catalyzes the hydrolysis of phospholipids at the sn-2 position yielding a free fatty acid and a lysophospholipid.1 The release of arachidonic acid from membrane phospholipids by PLA2 is believed to be a key step in the control of eicosanoid production within the cell.2 The Cayman Chemical secretory PLA2 (sPLA2) Assay kit provides an accurate and convenient method for measurement of sPLA2 activity. This assay uses the 1,2-dithio analog of diheptanoyl phosphatidylcholine which serves as a substrate for most PLA2s (for example, bee and cobra venoms, pancreatic, etc.) with the exception of cytosolic PLA2.3,4 Upon hydrolysis of the thio ester bond at the sn-2 position by PLA2, free thiols are detected using DTNB (5,5-dithio-bis-(2-nitrobenzoic acid)).

    Needed but not supplied: Please download the kit booklet to verify if UltraPure Water (Milli-Q or equivalent) or any other components are needed for this assay.

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Dennis, E.A. Phospholipases. The Enzymes XVI, (1983).

    2. Dennis, E.A. Diversity of group types, regulation, and function of phospholipase A2. The Journal of Biological Chemisty 269(18), 13057-13060 (1994).

    3. Hendrickson, H.S., Hendrickson, E.K., and Dybvig, R.H. Chiral synthesis of a dithiolester analog of phosphatidylcholine as a substrate for the assay of phospholipase A2. J. Lipid Res. 24(11), 1532-1537 (1983).

    4. Reynolds, L.J., Hughes, L.L., and Dennis, E.A. Analysis of human synovial fluid phospholipase A2 on short chain phosphatidylcholine-mixed micelles: Development of a spectrophotometric assay suitable for a microtiterplate reader. Anal. Biochem. 204(1), 190-197 (1992).

    Product Citations

    Zhang, T., Yu, W., Cheng, X., et alUp-regulated PLA2G10 in cancer impairs T cell infiltration to dampen immunity. Sci. Immunol. 9, eadh2334 (2024).

    Jaiswal, A., Rehman, R., Dutta, J., et alCellular distribution of secreted phospholipase A2 in lungs of IPF patients and its inhibition in bleomycin-induced pulmonary fibrosis in mice. Cells 12(7), 1044 (2023).

    Hou, S., Xu, T., Xu, J., et alStructural basis for functional selectivity and ligand recognition revealed by crystal structures of human secreted phospholipase A2 group IIE. Sci. Rep. 7(1), 10815 (2017).

    Hou, S., Bai, J., Chen, C., et alThe atypical binding mechanism of second calcium on phospholipase A2 group IIE. Biochem. Biophys. Res. Commun. 557, 267-272 (2021).

    Debono, J., Cochran, C., Kruruppu, S., et alCanopy venom: Proteomic comparison among new world arboreal pit-viper venoms. Toxins (Basel) 8(7), E210 (2016).

    Zhang, Y., Xu, T., Chen, Q., et alExpression, purification, and refolding of active human and mouse secreted group IIE phospholipase A2. Protein Expr. Purif. 80(1), 68-73 (2011).