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mRNA decapping complex. Molecular model showing the molecular structure of the complex between mRNA decapping enzyme 1 (DCP1) and mRNA (messenger-ribonucleic acid) decapping enzyme 2 (DCP2). This DCP1-DCP2 complex catalyses the removal of the 5' cap structure from mRNA prior to its degradation from the 5' end. (KEYSTONE/SCIENCE PHOTO LIBRARY/LAGUNA DESIGN)