Rlp7p is associated with 60S preribosomes, restricted to the granular component of the nucleolus, and required for pre-rRNA processing [PDF]
, 2002 Many analyses have examined subnucleolar structures in eukaryotic cells, but the relationship between morphological structures, pre-rRNA processing, and ribosomal particle assembly has remained unclear.
Tollervey, D +13 more
core +1 more source
Rok1p Is a Putative RNA Helicase Required for rRNA Processing [PDF]
Molecular 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
The human Imp3 and Imp4 proteins form a ternary complex with hMpp10, which only interacts with the U3 snoRNA in 60-80S ribonucleoprotein complexes [PDF]
, 2003 Ribosome biogenesis requires a vast number of trans-acting factors many of which are required for the chemical modification and processing of the pre-rRNA component.
Granneman, Sander; id_orcid +13 more
core +1 more source
Processing human urine and ureteral stents for 16S rRNA amplicon sequencing
STAR 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
RNA polymerase I-specific subunits promote polymerase clustering to enhance the rRNA gene transcription cycle. [PDF]
, 2011 RNA polymerase I (Pol I) produces large ribosomal RNAs (rRNAs). In this study, we show that the Rpa49 and Rpa34 Pol I subunits, which do not have counterparts in Pol II and Pol III complexes, are functionally conserved using heterospecific ...
Gadal, O. +39 more
core +1 more source
Trypanosome MTR4 is involved in rRNA processing
Nucleic 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
Roles of the HEAT repeat proteins Utp10 and Utp20 in 40S ribosome maturation [PDF]
, 2007 A family of HEAT-repeat containing ribosome synthesis factors was previously identified in Saccharomyces cerevisiae. We report the detailed characterization of two of these factors, Utp10 and Utp20, which were initially identified as components of the ...
Tollervey, David +2 more
core +1 more source
Identification of a novel methyltransferase, Bmt2, responsible for the N-1-methyl-adenosine base modification of 25S rRNA in "Saccharomyces cerevisiae" [PDF]
, 2013 The 25S rRNA of yeast contains several base modifications in the functionally important regions. The enzymes responsible for most of these base modifications remained unknown.
Sharma, Sunny +3 more
core +1 more source
RNA 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
40S ribosome biogenesis co-factors are essential for gametophyte and embryo development [PDF]
, 2013 Ribosome biogenesis is well described in Saccharomyces cerevisiae. In contrast only very little information is available on this pathway in plants. This study presents the characterization of five putative protein co-factors of ribosome biogenesis in ...
Roman Martin +22 more
core +2 more sources