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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Functional recognition of 5' splice site by U4/U6.U5 tri-snRNP defines a novel ATP-dependent step in early spliceosome assembly.

A sensitive assay based on competition between cis-and trans-splicing suggested that factors in addition to U1 snRNP were important for early 5' splice site recognition. Cross-linking and physical protection experiments revealed a functionally important interaction between U4/U6.U5 tri-snRNP and the 5' splice site, which unexpectedly was not dependent upon prior binding of U2 snRNP to the branch point. The early 5' splice site/tri-snRNP interaction requires ATP, occurs in both nematode and HeLa cell extracts, and involves sequence-specific interactions between the highly conserved splicing factor Prp8 and the 5' splice site. We propose that U1 and U5 snRNPs functionally collaborate to recognize and define the 5' splice site prior to establishment of communication with the 3' splice site.[1]

References

  1. Functional recognition of 5' splice site by U4/U6.U5 tri-snRNP defines a novel ATP-dependent step in early spliceosome assembly. Maroney, P.A., Romfo, C.M., Nilsen, T.W. Mol. Cell (2000) [Pubmed]
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