M7GpppN-mRNA hydrolase (EC 3.6.1.62, DCP2, NUDT16, D10 protein, D9 protein, D10 decapping enzyme, decapping enzyme) is an enzyme with systematic name m7GpppN-mRNA m7GDP phosphohydrolase. This enzyme catalyses the following chemical reaction M7GpppN-mRNA hydrolase (EC 3.6.1.62, DCP2, NUDT16, D10 protein, D9 protein, D10 decapping enzyme, decapping enzyme) is an enzyme with systematic name m7GpppN-mRNA m7GDP phosphohydrolase. This enzyme catalyses the following chemical reaction Decapping of mRNA is essential in eukaryotic mRNA turnover.