Article
Suppression of multiple substrate mutations by spliceosomal prp8 alleles suggests functional correlations with ribosomal ambiguity mutants.
Molecular cell - 7 May 2004
Query Charles C, Konarska Maria M
Abstract excerpt
Conformational change within the spliceosome is required between the first catalytic step of pre-mRNA splicing, when the branch site (BS) attacks the 5' splice site, and the second step, when the 5' exon attacks the 3' splice site, yielding mRNA and lariat-intron products. A genetic screen for suppressors of BS A-to-G mutants, which stall between the two steps, identified Prp8, the highly conserved spliceosomal...
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