eLife Assessment
This study attempts to understand the functional roles of the human DCP1 paralogs in regulating RNA decay by DCP2. Using a combination of cellular-based assays and in vitro assays, the authors conclude that DCP1a/b plays a role in regulating DCP2 activity. While this revised version presents some new and interesting observations on human DCP1, the underlying data to support its claims remain incomplete. Overall, these results will be useful to the RNA community.