Results 51 to 60 of about 582,607 (300)

Reducing the Effects of PCR Amplification and Sequencing Artifacts on 16S rRNA-Based Studies

PLoS ONE, 2011
The advent of next generation sequencing has coincided with a growth in interest in using these approaches to better understand the role of the structure and function of the microbial communities in human, animal, and environmental health.
P. Schloss, D. Gevers, Sarah L. Westcott
semanticscholar   +1 more source

An intergenic non-coding rRNA correlated with expression of the rRNA and frequency of an rRNA single nucleotide polymorphism in lung cancer cells.

PLoS ONE, 2009
BackgroundRibosomal RNA (rRNA) is a central regulator of cell growth and may control cancer development. A cis noncoding rRNA (nc-rRNA) upstream from the 45S rRNA transcription start site has recently been implicated in control of rRNA transcription in ...
Yih-Horng Shiao, Sorin T Lupascu, Yuhan D Gu, Wojciech Kasprzak, Christopher J Hwang, Janet R Fields, Robert M Leighty, Octavio Quiñones, Bruce A Shapiro, W Gregory Alvord, Lucy M Anderson   +10 more
doaj   +1 more source

Locus-specific ribosomal RNA gene silencing in nucleolar dominance. [PDF]

PLoS ONE, 2007
The silencing of one parental set of rRNA genes in a genetic hybrid is an epigenetic phenomenon known as nucleolar dominance. We showed previously that silencing is restricted to the nucleolus organizer regions (NORs), the loci where rRNA genes are ...
Michelle S Lewis, Diane J Pikaard, Mikhail Nasrallah, Jed H Doelling, Craig S Pikaard   +4 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Identification of an Alternative rRNA Post-transcriptional Maturation of 26S rRNA in the Kingdom Fungi

Frontiers in Microbiology, 2018
Despite of the integrity of their RNA, some desert truffles present a non-canonical profile of rRNA where 3.3 kb is absent, 1.8 kb is clear and a band of 1.6 kb is observed.
Alfonso Navarro-Ródenas, Andrea Carra, Asunción Morte   +2 more
doaj   +1 more source

The nucleolar protein NOL12 is required for processing of large ribosomal subunit rRNA precursors in Arabidopsis

BMC Plant Biology, 2023
Background NOL12 5′-3′ exoribonucleases, conserved among eukaryotes, play important roles in pre-rRNA processing, ribosome assembly and export. The most well-described yeast counterpart, Rrp17, is required for maturation of 5.8 and 25S rRNAs, whereas ...
Monika Zakrzewska-Placzek, Anna Golisz-Mocydlarz, Michal Krzyszton, Justyna Piotrowska, Malgorzata Lichocka, Joanna Kufel   +5 more
doaj   +1 more source

Endonucleolytic processing plays a critical role in the maturation of ribosomal RNA in Methanococcus maripaludis

RNA Biology, 2023
Ribosomal RNA (rRNA) processing and maturation are fundamentally important for ribosome biogenesis, but the mechanisms in archaea, the third form of life, remains largely elusive.
Lei Qi, Huan Liu, Jian Gao, Kai Deng, Xiaoyan Wang, Xiuzhu Dong, Jie Li   +6 more
doaj   +1 more source

Regulatory Aspects of rRNA Modification and Pre-rRNA Processing

, 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

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

Molecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova, Zuzana Kozovska, Ondrej Pos, Kristina Pavlov, Sachin Gulati, Peter Makovicky, Kristina Jakic, Monika Burikova, Eva Sedlackova, Barbora Svitkova, Silvia Tyciakova, Vojtech Bystry, Nicolas Blavet, Boris Tichy, Matej Hrnciar, Jaroslav Budis, Miroslav Tomas, Peter Dubovan, Georgina Kolnikova, Veronika Repaska, Nikoleta Mojzesova, Eva Zomborska, Daniel Pindak, Michal Mego, Tomas Szemes, Miroslava Matuskova   +25 more
wiley   +1 more source

Polyadenylated versions of small non-coding RNAs in Saccharomyces cerevisiae are degraded by Rrp6p/Rrp47p independent of the core nuclear exosome

Microbial Cell
In Saccharomyces cerevisiae, polyadenylated forms of mature (and not precur-sor) small non-coding RNAs (sncRNAs) those fail to undergo proper 3-end mat-uration are subject to an active degradation by Rrp6p and Rrp47p, which does not require the ...
Anusha Chaudhuri, Soumita Paul, Mayukh Banerjea, Biswadip Das   +3 more
doaj   +1 more source