Cooperative structure of the heterotrimeric pre-mRNA retention and splicing complex.
Wysoczanski, P., Schneider, C., Xiang, S., Munari, F., Trowitzsch, S., Wahl, M.C., Luhrmann, R., Becker, S., Zweckstetter, M.(2014) Nat Struct Mol Biol 21: 911-918
- PubMed: 25218446
- DOI: https://doi.org/10.1038/nsmb.2889
- Primary Citation of Related Structures:
2MKC - PubMed Abstract:
The precursor mRNA (pre-mRNA) retention and splicing (RES) complex is a spliceosomal complex that is present in yeast and humans and is important for RNA splicing and retention of unspliced pre-mRNA. Here, we present the solution NMR structure of the RES core complex from Saccharomyces cerevisiae. Complex formation leads to an intricate folding of three components-Snu17p, Bud13p and Pml1p-that stabilizes the RNA-recognition motif (RRM) fold of Snu17p and increases binding affinity in tertiary interactions between the components by more than 100-fold compared to that in binary interactions. RES interacts with pre-mRNA within the spliceosome, and through the assembly of the RES core complex RNA binding efficiency is increased. The three-dimensional structure of the RES core complex highlights the importance of cooperative folding and binding in the functional organization of the spliceosome.
Organizational Affiliation:
Department for NMR-based Structural Biology, Max Planck Institute for Biophysical Chemistry, Göttingen, Germany.