Results 31 to 40 of about 136,829 (254)

Structural transitions during large ribosomal subunit maturation analyzed by tethered nuclease structure probing in S. cerevisiae. [PDF]

open access: yesPLoS 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
doaj   +1 more source

Regulation of rRNA Processing: A Role for a Unique GTPase [PDF]

open access: yesMolecular 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.
openaire   +2 more sources

Perturbation of Ribosome Biogenesis Drives Cells into Senescence through 5S RNP-Mediated p53 Activation

open access: yesCell 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
doaj   +1 more source

A functional interface at the rDNA connects rRNA synthesis, pre-rRNA processing and nucleolar surveillance in budding yeast. [PDF]

open access: yesPLoS 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
doaj   +1 more source

Rok1p Is a Putative RNA Helicase Required for rRNA Processing [PDF]

open access: yesMolecular and Cellular Biology, 1997
The synthesis of ribosomes involves many small nucleolar ribonucleoprotein particles (snoRNPs) as transacting factors. Yeast strains lacking the snoRNA, snR10, are viable but are impaired in growth and delayed in the early pre-rRNA cleavages at sites A0, A1, and A2, which lead to the synthesis of 18S rRNA.
Venema, J   +4 more
openaire   +4 more sources

Processing human urine and ureteral stents for 16S rRNA amplicon sequencing

open access: yesSTAR Protocols, 2021
Summary: Ureteral stents are commonly used medical devices that harbor a unique and patient-specific microbial community. This protocol describes an optimized procedure for high-quality DNA extraction from both urine and ureteral stent samples for the ...
Kait F. Al, Jeremy P. Burton
doaj   +1 more source

Trypanosome MTR4 is involved in rRNA processing

open access: yesNucleic Acids Research, 2007
The yeast putative RNA helicase Mtr4p is implicated in exosome-mediated RNA quality control in the nucleus, interacts with the exosome, and is found in the 'TRAMP' complex with a yeast nuclear poly(A) polymerase (Trf4p/Pap2p or Trf5p) and a putative RNA-binding protein, Air1p or Air2p. Depletion of the Trypanosoma brucei MTR4-like protein TbMTR4 caused
Cristodero, Marina   +1 more
openaire   +2 more sources

The bRPS6-Family Protein RFC3 Prevents Interference by the Splicing Factor CFM3b during Plastid rRNA Biogenesis in Arabidopsis thaliana

open access: yesPlants, 2020
Plastid ribosome biogenesis is important for plant growth and development. REGULATOR OF FATTY ACID COMPOSITION3 (RFC3) is a member of the bacterial ribosomal protein S6 family and is important for lateral root development. rfc3-2 dramatically reduces the
Yumi Nagashima   +5 more
doaj   +1 more source

Synergistic interaction network between the snR30 RNP, Utp23, and ribosomal RNA during ribosome synthesis

open access: yesRNA Biology, 2022
snR30/U17 is a highly conserved H/ACA RNA that is required for maturation of the small ribosomal subunit in eukaryotes. By base-pairing to the expansion segment 6 (ES6) of 18S ribosomal RNA (rRNA), the snR30 H/ACA Ribonucleoprotein (RNP) indirectly ...
Timothy J. Vos, Ute Kothe
doaj   +1 more source

Regulatory Aspects of rRNA Modification and Pre-rRNA Processing

open access: yes, 2014
The major types of posttranscriptional modification are the isomerization of uracil to pseudouridine, 2′-O-methylation of the ribose moieties and base methylation. In addition to their roles in pre-rRNA modification, both Dim1p and Cbf5p are required for pre-rRNA processing, and Pet56p is required for synthesis of mitochondrial large ribosomal subunits.
Lafontaine, Denis, Tollervey, D
openaire   +2 more sources

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