New insights into the control of mRNA decapping.
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.
Simon
Ernesto
E
Equipe Labellisée La Ligue, Centre de Génétique Moléculaire, CNRS UPR2167, Avenue de la Terrasse, 91198 Gif-sur-Yvette cedex, France.
Camier
Sylvie
S
Séraphin
Bertrand
B
D000818:Animals; D004722:Endoribonucleases / Q000235:genetics / Q000378:metabolism; D006801:Humans; D008957:Models, Genetic; D009154:Mutation; D011506:Proteins / Q000378:metabolism; D012315:RNA Caps / Q000235:genetics / Q000378:metabolism*; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism*; D029701:Saccharomyces cerevisiae Proteins / Q000235:genetics / Q000378:metabolism; D029702:Schizosaccharomyces pombe Proteins / Q000235:genetics / Q000378:metabolism
C508496:Dcp2 protein, S pombe; C507914:EDC4 protein, human; D011506:Proteins; D012315:RNA Caps; D012333:RNA, Messenger; D029701:Saccharomyces cerevisiae Proteins; D029702:Schizosaccharomyces pombe Proteins; C400572:DCP2 protein, S cerevisiae; D004722:Endoribonucleases; C467723:DCP2 protein, human