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• W2170191618 endingPage "5513" @default.
• W2170191618 startingPage "5499" @default.
• W2170191618 abstract "Regulation of mRNA turnover is an important cellular strategy for posttranscriptional control of gene expression, mediated by the interplay of cis-acting sequences and associated trans-acting factors. Pub1p, an ELAV-like yeast RNA-binding protein with homology to T-cell internal antigen 1 (TIA-1)/TIA-1-related protein (TIAR), is an important modulator of the decay of two known classes of mRNA. Our goal in this study was to determine the range of mRNAs whose stability is dependent on Pub1p, as well as to identify specific transcripts that directly bind to this protein. We have examined global mRNA turnover in isogenic PUB1 and pub1delta strains through gene expression analysis and demonstrate that 573 genes exhibit a significant reduction in half-life in a pub1delta strain. We also examine the binding specificity of Pub1p using affinity purification followed by microarray analysis to comprehensively distinguish between direct and indirect targets and find that Pub1p significantly binds to 368 cellular transcripts. Among the Pub1p-associated mRNAs, 53 transcripts encoding proteins involved in ribosomal biogenesis and cellular metabolism are selectively destabilized in the pub1delta strain. In contrast, genes involved in transporter activity demonstrate association with Pub1p but display no measurable changes in transcript stability. Characterization of two candidate genes, SEC53 and RPS16B, demonstrate that both Pub1p-dependent regulation of stability and Pub1p binding require 3' untranslated regions, which harbor distinct sequence motifs. These results suggest that Pub1p binds to discrete subsets of cellular transcripts and posttranscriptionally regulates their expression at multiple levels." @default.
• W2170191618 created "2016-06-24" @default.
• W2170191618 creator A5020212356 @default.
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• W2170191618 date "2005-07-01" @default.
• W2170191618 modified "2023-10-15" @default.
• W2170191618 title "Global Analysis of Pub1p Targets Reveals a Coordinate Control of Gene Expression through Modulation of Binding and Stability" @default.
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• W2170191618 doi "https://doi.org/10.1128/mcb.25.13.5499-5513.2005" @default.
• W2170191618 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/1156976" @default.
• W2170191618 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/15964806" @default.
• W2170191618 hasPublicationYear "2005" @default.
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