Results 31 to 40 of about 34,836 (187)

Ribosomal RNA: Small nucleolar RNAs make their mark [PDF]

open access: yesCurrent Biology, 1996
Small nucleolar RNAs direct the location of certain methylations in ribosomal RNA by direct base pairing; although evolutionarily conserved, the physiological significance of these modifications remains unclear.
Peculis, Brenda A., Mount, Stephen M.
openaire   +2 more sources

Glutamine deficiency in solid tumor cells confers resistance to ribosomal RNA synthesis inhibitors

open access: yesNature Communications, 2022
Small molecules that target RNA Polymerase I inhibit ribosome biogenesis to activate p53 through the nucleolar surveillance response pathway. Here, the authors show that p53 induction by ribosome stress is dependent on extracellular glutamine ...
Melvin Pan   +17 more
doaj   +1 more source

On the nucleolar size and density in human early granulocytic progenitors, myeloblasts

open access: yesEuropean Journal of Histochemistry, 2009
Human myeloblasts were studied in bone marrow of patients suffering from chronic phase of chronic myeloid leukaemia to provide more information on the nucleolar diameter in these early granulocytic progenitors. These cells are a convenient model for such
K Smetana   +4 more
doaj   +1 more source

Nucleolar localization signals of Box H/ACA small nucleolar RNAs [PDF]

open access: yesThe EMBO Journal, 1999
The two major families of small nucleolar RNAs (snoRNAs), Box C/D and Box H/ACA, are generated in the nucleoplasm and transported to the nucleolus where they function in rRNA processing and modification. We have investigated the sequences involved in the intranuclear transport of Box H/ACA snoRNAs by assaying the localization of injected fluorescent ...
A, Narayanan   +6 more
openaire   +2 more sources

Jouvence a small nucleolar RNA required in the gut extends lifespan in Drosophila

open access: yesNature Communications, 2020
Small non-coding RNAs contribute to the regulation of aging. Here the authors identify a small nucleolar RNA, the snoRNA jouvence, which extends the lifespan of fruit flies through its function in the gut, and is conserved in humans.
Stéphanie Soulé   +4 more
doaj   +1 more source

Evolution of small nucleolar RNAs in nematodes [PDF]

open access: yesNucleic Acids Research, 2006
In contrast to mRNAs, which are templates for translating proteins, non-protein coding (npc) RNAs (also known as 'non-coding' RNA, ncRNA), exhibit various functions in different compartments and developmental stages of the cell. Small nucleolar RNAs (snoRNAs), one of the largest classes of npcRNAs, guide post-transcriptional modifications of other RNAs
Zemann, Anja   +4 more
openaire   +2 more sources

LncRNA SNHG15 contributes to doxorubicin resistance of osteosarcoma cells through targeting the miR-381-3p/GFRA1 axis

open access: yesOpen Life Sciences, 2020
Osteosarcoma is a common primary malignant bone cancer. Long noncoding RNA small nucleolar RNA host gene 15 (SNHG15) has been reported to play an oncogenic role in many cancers.
Zhang Jinshan   +5 more
doaj   +1 more source

Small Nucleolar RNAs Tell a Different Tale [PDF]

open access: yesTrends in Genetics, 2019
Transcribing RNA Polymerase II interacts with multiple factors that orchestrate maturation and stabilisation of messenger RNA. For the majority of noncoding RNAs, the polymerase complex employs entirely different strategies, which usually direct the nascent transcript to ribonucleolytic degradation.
Kufel, Joanna, Grzechnik, Pawel
openaire   +3 more sources

Human snoRNA-93 is processed into a microRNA-like RNA that promotes breast cancer cell invasion

open access: yesnpj Breast Cancer, 2017
RNA: Small nucleolar-derived RNA contributes to tumor invasiveness A short microRNA-like fragment excised from a small nucleolar RNA (called a snoRNA-derived RNA or sdRNA) contributes to the invasiveness of breast cancer cells.
Dillon G. Patterson   +23 more
doaj   +1 more source

The Conserved RNA Exonuclease Rexo5 Is Required for 3′ End Maturation of 28S rRNA, 5S rRNA, and snoRNAs

open access: yesCell Reports, 2017
Non-coding RNA biogenesis in higher eukaryotes has not been fully characterized. Here, we studied the Drosophila melanogaster Rexo5 (CG8368) protein, a metazoan-specific member of the DEDDh 3′-5′ single-stranded RNA exonucleases, by genetic, biochemical,
Stefanie Gerstberger   +8 more
doaj   +1 more source

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