Provides everything needed to assay calcineurin cellular activity, including recombinant calcineurin control. A complete colorimetric assay kit for measuring cellular calcineurin (PP2B) phosphatase activity. It employs a convenient 96-well plate format with all reagents necessary for measuring calcineurin (PP2B) phosphatase activity in tissue/cellular extracts PLUS human recombinant calcineurin is included as a positive control. The RII phosphopeptide substrate, supplied with this kit is the most efficient and selective peptide known for calcineurin. The detection of free-phosphate released is based on the classic malachite green assay. Applications: Colorimetric detection. Contents: Calcineurin enzyme, Calmodulin (human, recombinant), Substrate (RII phosphopeptide), 2x assay buffer, EGTA Buffer, Lysis Buffer, Protease inhibitor cocktail, Biomol Green™ Reagent, Phosphate standard, Okadaic acid, Desalting column and resin, ½-Volume microplate