Phosphatase Inhibitor Cocktail (1 Tube EDTA-Free 100X) provides comprehensive inhibition of various phosphatases including acid and alkaline phosphatases serine/threonine phosphatases (e g PP1 PP2A PP2B) and protein tyrosine phosphatases (PTPs) By suppressing phosphatase enzymatic activities it preserves phosphorylation states of proteins in lysates from mammalian plant yeast insect or bacterial samples ensuring more accurate downstream analysis It is applicable in protein lysate preparations immunoprecipitations nuclear extracts and processing of fixed tissues (e g FFPE) to maintain phosphorylation modifications