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Article
Open AccessStructure of the OMEGA nickase IsrB in complex with ωRNA and target DNA
RNA-guided systems, such as CRISPR–Cas, combine programmable substrate recognition with enzymatic function, a combination that has been used advantageously to develop powerful molecular technologies1,2. Structura...
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Article
Structure of a spliceosome remodelled for exon ligation
The cryo-electron microscopy structure of a yeast spliceosome stalled before mature RNA formation provides insight into the mechanism of exon ligation.
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Article
Cryo-EM structure of the spliceosome immediately after branching
Precursor mRNA (pre-mRNA) splicing proceeds by two consecutive transesterification reactions via a lariat–intron intermediate. Here we present the 3.8 Å cryo-electron microscopy structure of the spliceosome im...