Structure determination of an 11-subunit exosome in complex with RNA by molecular replacement

The RNA exosome is an evolutionarily conserved multi-protein complex involved in the 3' degradation of a variety of RNA transcripts. In the nucleus, the exosome participates in the maturation of structured RNAs, in the surveillance of pre-mRNAs and in the decay of a variety of noncoding transcripts. In the cytoplasm, the exosome degrades mRNAs in constitutive and regulated turnover pathways. Several structures of subcomplexes of eukaryotic...