psiCLIP reveals dynamic RNA binding by DEAH-box helicases before and after exon ligation

Abstract

ATP-dependent helicases remodel the spliceosome and proofread splice site recognition. A new method – Purified Spliceosome iCLIP (psiCLIP) – probes protein-RNA interactions in defined spliceosome complexes to reveal how the helicases Prp16 and Prp22 promote correct mRNA synthesis through dynamic binding on their RNA substrates.