mRNA-decapping enzyme 1A (DCP1A)

Necessary for the degradation of mRNAs, both in ordinary mRNA turnover and in nonsense-mediated mRNA decay. Removes the 7- methyl guanine cap structure from mRNA molecules, yielding a 5'- phosphorylated mRNA fragment and 7m-GDP.

Contributes to the transactivation of target genes after stimulation by TGFB1. .