| Literature DB >> 29358758 |
Marcello Clerici1, Marco Faini2, Lena M Muckenfuss1, Ruedi Aebersold2,3, Martin Jinek4.
Abstract
Mammalian mRNA biogenesis requires specific recognition of a hexanucleotide AAUAAA motif in the polyadenylation signals (PAS) of precursor mRNA (pre-mRNA) transcripts by the cleavage and polyadenylation specificity factor (CPSF) complex. Here we present a 3.1-Å-resolution cryo-EM structure of a core CPSF module bound to the PAS hexamer motif. The structure reveals the molecular interactions responsible for base-specific recognition, providing a rationale for mechanistic differences between mammalian and yeast 3' polyadenylation.Entities:
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Year: 2018 PMID: 29358758 PMCID: PMC6900284 DOI: 10.1038/s41594-017-0020-6
Source DB: PubMed Journal: Nat Struct Mol Biol ISSN: 1545-9985 Impact factor: 15.369