Results 41 to 50 of about 2,322,564 (290)

RNA helicases in RNA decay [PDF]

open access: yesBiochemical Society Transactions, 2018
RNA molecules have the tendency to fold into complex structures or to associate with complementary RNAs that exoribonucleases have difficulties processing or degrading. Therefore, degradosomes in bacteria and organelles as well as exosomes in eukaryotes have teamed-up with RNA helicases.
Khemici, Vanessa, Linder, Patrick
openaire   +3 more sources

Force for ancient and recent life: viral and stem-loop RNA consortia promote life. [PDF]

open access: yes, 2014
Lytic viruses were thought to kill the most numerous host (i.e., kill the winner). But persisting viruses/defectives can also protect against viruses, especially in a ubiquitous virosphere. In 1991, Yarmolinsky et al.
Villarreal, Luis P
core   +1 more source

Transcriptionally inactive oocyte-type 5S RNA genes of Xenopus laevis are complexed with TFIIIA in vitro [PDF]

open access: yes, 1987
An extract from whole oocytes of Xenopus laevis was shown to transcribe somatic-type 5S RNA genes approximately 100-fold more efficiently than oocyte-type 5S RNA genes.
Eversole-Cire, Pamela   +4 more
core   +1 more source

Estimate and determinants of SARS-CoV-2 RNA clearance time among non-severe COVID-19 patients

open access: yesJournal of Family Medicine and Primary Care, 2022
Objectives: To estimate SARS-CoV-2 RNA clearance time among non-severe COVID-19 patients and explore factors associated with delayed negative conversion.
Mohammed A Aljunaid   +3 more
doaj   +1 more source

Traffic into silence: endomembranes and post-transcriptional RNA silencing. [PDF]

open access: yes, 2014
microRNAs (miRNAs) and small interfering RNAs (siRNAs) are small RNAs that repress gene expression at the post-transcriptional level in plants and animals. Small RNAs guide Argonaute-containing RNA-induced silencing complexes to target RNAs in a sequence-
Chen, Xuemei   +2 more
core   +3 more sources

RNA tectonics: towards RNA design

open access: yesFolding and Design, 1996
Our understanding of the structural, folding and catalytic properties of RNA molecules has increased enormously in recent years. The discovery of catalytic RNA molecules by Sidney Altman and Tom Cech, the development of in vitro selection procedures, and the recent crystallizations of hammerhead ribozymes and of a large domain of an autocatalytic group
Westhof, Eric   +2 more
openaire   +2 more sources

Moving RNA moves RNA forward [PDF]

open access: yesScience China Life Sciences, 2013
Cell communication affects all aspects of cell structure and behavior, such as cell proliferation, differentiation, division, and coordination of various physiological functions. The moving RNA in plants and mammalian cells indicates that nucleic acid could be one of the various types of messengers for cell communication. The microvesicle is a critical
Peng, LiNa   +3 more
openaire   +2 more sources

Recognition of two distinct elements in the RNA substrate by the RNA-binding domain of the T. thermophilus DEAD box helicase Hera [PDF]

open access: yes, 2013
DEAD box helicases catalyze the ATP-dependent destabilization of RNA duplexes. Whereas duplex separation is mediated by the helicase core shared by all members of the family, flanking domains often contribute to binding of the RNA substrate.
Klostermeier, Dagmar   +5 more
core   +1 more source

RNA Chemistry for RNA Biology

open access: yesCHIMIA, 2019
Advances in the chemical synthesis of RNA have opened new possibilities to address current questions in RNA biology. Access to site-specifically modified oligoribonucleotides is often a pre-requisite for RNA chemical-biology projects. Driven by the enormous research efforts for development of oligonucleotide therapeutics, a wide range of ...
Rothlisberger, Pascal   +2 more
openaire   +5 more sources

Understanding RNA modifications: the promises and technological bottlenecks of the ‘epitranscriptome’ [PDF]

open access: yesOpen Biology, 2017
The discovery of mechanisms that alter genetic information via RNA editing or introducing covalent RNA modifications points towards a complexity in gene expression that challenges long-standing concepts.
Matthias Schaefer   +2 more
doaj   +1 more source

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