New insights into the control of mRNA decapping
Ernesto Simon1, Sylvie Camier, Bertrand Séraphin
1Equipe Labellisée La Ligue, Centre de Génétique Moléculaire, CNRS UPR2167, Avenue de la Terrasse, 91198 Gif-sur-Yvette cedex, France.
Abstract:
mRNA decapping irreversibly targets mRNAs for fast decay. Cap removal is catalyzed by decapping protein Dcp2 but also requires Dcp1. Recently, two groups have provided a first glimpse of the regulation mechanism of this crucial step in gene expression. Resolution of the yeast Dcp2 structure has enabled identification of the residues that are important for its interaction with Dcp1. However, the human decapping machinery seems to be more complex because a third component, Hedls, is required for a functional Dcp1-Dcp2 interaction.
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