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  • 1
    Language: English
    In: Nature Reviews Microbiology, 2018, Vol.16(10), pp.601-615
    Description: RNA-binding proteins (RBPs) are central to most if not all cellular processes, dictating the fate of virtually all RNA molecules in the cell. Starting with pioneering work on ribosomal proteins, studies of bacterial RBPs have paved the way for molecular studies of RNA-protein interactions. Work over...
    Keywords: Medical And Health Sciences ; Basic Medicine ; Microbiology In The Medical Area ; Medicin Och Hälsovetenskap ; Medicinska Och Farmaceutiska Grundvetenskaper ; Mikrobiologi Inom Det Medicinska Området
    ISSN: 1740-1526
    E-ISSN: 17401534
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  • 2
    Language: English
    In: Molecular Cell, 07 June 2018, Vol.70(5), pp.971-982.e6
    Description: The conserved RNA-binding protein ProQ has emerged as the centerpiece of a previously unknown third large network of post-transcriptional control in enterobacteria. Here, we have used UV crosslinking and RNA sequencing (CLIP-seq) to map hundreds of ProQ binding sites in and . Our analysis of these binding sites, many of which are conserved, suggests that ProQ recognizes its cellular targets through RNA structural motifs found in small RNAs (sRNAs) and at the 3′ end of mRNAs. Using the mRNA as a model for 3′ end targeting, we reveal a function for ProQ in protecting mRNA against exoribonucleolytic activity. Taken together, our results underpin the notion that ProQ governs a post-transcriptional network distinct from those of the well-characterized sRNA-binding proteins, CsrA and Hfq, and suggest a previously unrecognized, sRNA-independent role of ProQ in stabilizing mRNAs. Using CLIP-seq, Holmqvist et al. map transcriptome-wide interactions of the emerging global RNA-binding protein ProQ in and . Their data suggest ProQ to target sRNAs and mRNA 3′ UTRs primarily through a structural code and to stabilize some mRNAs by counteracting 3′ exoribonuclease activity.
    Keywords: Proq ; Clip-Seq ; RNA-Binding Protein ; 3′ Utr ; Post-Transcriptional Control ; Exoribonuclease ; Biology
    ISSN: 1097-2765
    E-ISSN: 1097-4164
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