4.5 Article

Large-scale mapping of branchpoints in human pre-mRNA transcripts in vivo

Journal

NATURE STRUCTURAL & MOLECULAR BIOLOGY
Volume 19, Issue 7, Pages 719-+

Publisher

NATURE PUBLISHING GROUP
DOI: 10.1038/nsmb.2327

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Funding

  1. Brown University [8P30GM103410]
  2. [R01GM095612-01]
  3. [NSF1020552]
  4. Div Of Molecular and Cellular Bioscience
  5. Direct For Biological Sciences [1020552] Funding Source: National Science Foundation

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We present the first large-scale identification of lariats-the transient branched introns that are released as a byproduct of pre-mRNA splicing. The locations of the branchpoints in these introns provide insight into the early steps of splicing. From this data set, we have developed a comprehensive model of 3' splice-site selection, identified new mechanisms of alternative splicing and mapped the distribution of splicing factors around branchpoints.

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