Ontology highlight
ABSTRACT:
SUBMITTER: Plaschka C
PROVIDER: S-EPMC5503131 | biostudies-literature | 2017 Jun
REPOSITORIES: biostudies-literature
Nature 20170522 7660
Intron removal requires assembly of the spliceosome on precursor mRNA (pre-mRNA) and extensive remodelling to form the spliceosome's catalytic centre. Here we report the cryo-electron microscopy structure of the yeast Saccharomyces cerevisiae pre-catalytic B complex spliceosome at near-atomic resolution. The mobile U2 small nuclear ribonucleoprotein particle (snRNP) associates with U4/U6.U5 tri-snRNP through the U2/U6 helix II and an interface between U4/U6 di-snRNP and the U2 snRNP SF3b-contain ...[more]