SGD Paper 
Gross S and Moore C (2001) Five subunits are required for reconstitution of the cleavage and polyadenylation activities of Saccharomyces cerevisiae cleavage factor I. Proc Natl Acad Sci U S A 98(11):6080-5
Abstract: Cleavage and polyadenylation of mRNA 3' ends in Saccharomyces cerevisiae requires several factors, one of which is cleavage factor I (CF I). Purification of CF I activity from yeast extract has implicated numerous proteins as functioning in both cleavage and/or polyadenylation. Through reconstitution of active CF I from separately expressed and purified proteins, we show that CF I contains five subunits, Rna14, Rna15, Pcf11, Clp1, and Hrp1. These five are necessary and sufficient for reconstitution of cleavage activity in vitro when mixed with CF II, and for specific polyadenylation when mixed with polyadenylation factor I, purified poly(A) polymerase, and poly(A) binding protein. Analysis of the individual protein-protein interactions supports an architectural model for CF I in which Pcf11 simultaneously interacts with Rna14, Rna15, and Clp1, whereas Rna14 bridges Rna15 and Hrp1.
| Status: Published | Type: Journal Article | PubMed ID: 11344258 |
Topics addressed in this paper
Number of different genes curated to this paper: 10
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