Publications - Published papers

Please find below publications of our group. Currently, we list 500 papers. Some of the publications are in collaboration with the group of Sonja Prohaska and are also listed in the publication list for her individual group. Access to published papers (access) is restricted to our local network and chosen collaborators. If you have problems accessing electronic information, please let us know:

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The Coilin Interactome Identifies Hundreds of Small Noncoding RNAs that Traffic through Cajal Bodies

Martin Machyna, Stephanie Kehr, Korinna Straube, Dennis Kappei, Frank Buchholz, Falk Butter, Jernej Ule, Jana Hertel, Peter F. Stadler, Karla M. Neugebauer

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Molecular Cell,Volume 56, Issue 3, 6 November 2014, Pages 389–399

Abstract


Coilin protein scaffolds Cajal bodies (CBs)—subnuclear compartments enriched in small nuclear RNAs (snRNAs)—and promotes efficient spliceosomal snRNP assembly. The molecular function of coilin, which is intrinsically disordered with no defined motifs, is poorly understood. We use UV crosslinking and immunoprecipitation (iCLIP) to determine whether mammalian coilin binds RNA in vivo and to identify targets. Robust detection of snRNA transcripts correlated with coilin ChIP-seq peaks on snRNA genes, indicating that coilin binding to nascent snRNAs is a site-specific CB nucleator. Surprisingly, several hundred small nucleolar RNAs (snoRNAs) were identified as coilin interactors, including numerous unannotated mouse and human snoRNAs. We show that all classes of snoRNAs concentrate in CBs. Moreover, snoRNAs lacking specific CB retention signals traffic through CBs en route to nucleoli, consistent with the role of CBs in small RNP assembly. Thus, coilin couples snRNA and snoRNA biogenesis, making CBs the cellular hub of small ncRNA metabolism.

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