Regulation of rRNA Processing: A Role for a Unique GTPase [PDF]
Molecular Cell, 2005 Recent findings by Karbstein et al. (2005 [this issue of Molecular Cell]) reveal that association of the preribosomal biosynthesis factors U3 snoRNA and Rcl1p is controlled by the GTPase Bms1p, suggesting that regulatory events are involved in the formation of ribosome biogenesis complexes.
Dutca, Laura M., Culver, Gloria M.
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Ribonucleoproteins in Archaeal Pre-rRNA Processing and Modification [PDF]
Archaea, 2013 Given that ribosomes are one of the most important cellular macromolecular machines, it is not surprising that there is intensive research in ribosome biogenesis. Ribosome biogenesis is a complex process. The maturation of ribosomal RNAs (rRNAs) requires not only the precise cleaving and folding of the pre-rRNA but also extensive nucleotide ...
W. S. Vincent Yip +2 more
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RNA polymerase I transcription and pre-rRNA processing are linked by specific SSU processome components [PDF]
, 2004 Sequential events in macromolecular biosynthesis are often elegantly coordinated. The small ribosomal subunit (SSU) processome is a large ribonucleoprotein (RNP) required for processing of precursors to the small subunit RNA, the 18S, of the ribosome. We
Granneman, Sander; id_orcid +6 more
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The putative NTPase Fap7 mediates cytoplasmic 20S pre-rRNA processing through a direct interaction with Rps14 [PDF]
, 2005 One of the proteins identified as being involved in ribosome biogenesis by high-throughput studies, a putative P-loop-type kinase termed Fap7 (YDL166c), was shown to be required for the conversion of 20S pre-rRNA to 18S rRNA.
Nandineni, Madhusudan R +2 more
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Structural transitions during large ribosomal subunit maturation analyzed by tethered nuclease structure probing in S. cerevisiae. [PDF]
PLoS ONE, 2017 Yeast large ribosomal subunit (LSU) precursors are subject to substantial changes in protein composition during their maturation due to coordinated transient interactions with a large number of ribosome biogenesis factors and due to the assembly of ...
Gisela Pöll +8 more
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Yeast Rrp8p, a novel methyltransferase responsible for m1A 645 base modification of 25S rRNA [PDF]
, 2012 Ribosomal RNA undergoes various modifications to optimize ribosomal structure and expand the topological potential of RNA. The most common nucleotide modifications in ribosomal RNA (rRNA) are pseudouridylations and 2'-O methylations (Nm), performed by H ...
Sharma, Sunny +5 more
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Rrp47p is an exosome-associated protein required for the 3 ' processing of stable RNAs [PDF]
, 2003 Related exosome complexes of 3'-->5' exonucleases are present in the nucleus and the cytoplasm. Purification of exosome complexes from whole-cell lysates identified a Mg2+-labile factor present in substoichiometric amounts. This protein was identified
Tollervey, D +4 more
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Cell Reports, 2015 The 5S ribonucleoprotein particle (RNP) complex, consisting of RPL11, RPL5, and 5S rRNA, is implicated in p53 regulation under ribotoxic stress. Here, we show that the 5S RNP contributes to p53 activation and promotes cellular senescence in response to ...
Kazuho Nishimura +9 more
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A functional interface at the rDNA connects rRNA synthesis, pre-rRNA processing and nucleolar surveillance in budding yeast. [PDF]
PLoS ONE, 2011 Ribogenesis is a multistep error-prone process that is actively monitored by quality control mechanisms. How ribosomal RNA synthesis, pre-rRNA processing and nucleolar surveillance are integrated is unclear.
Nathalie Leporé, Denis L J Lafontaine
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Accurate Processing of Human Pre-rRNA In Vitro [PDF]
Molecular and Cellular Biology, 1989 We report here that the mature 5' terminus of human 18S rRNA is generated in vitro by a two-step processing reaction. In the first step, SP6 transcripts were specifically cleaved in HeLa cell nucleolar extract at three positions near the external transcribed spacer (ETS)-18S boundary.
G J, Hannon +5 more
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