We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleIsolation of an active step I spliceosome and composition of its RNP core.AuthorsBessonov, Sergey; Anokhina, Maria; Will, Cindy L.; Urlaub, Henning; Lührmann, ReinhardPublicationNature, 2008, Vol 452, Issue 7189, p846ISSN0028-0836Publication typearticleDOI10.1038/nature06842