Results 71 to 80 of about 2,163,835 (311)

Coupling RNA annealing and strand displacement: a FRET-based microplate reader assay for RNA chaperone activity

open access: yesBioTechniques, 2007
Proteins with RNA chaperone activity help RNAs to obtain their native conformations, and many of them are active in the two basic reactions—RNA annealing and strand displacement.
Lukas Rajkowitsch, Renée Schroeder
doaj   +1 more source

Maf1-mediated repression of RNA polymerase III transcription inhibits tRNA degradation via RTD pathway [PDF]

open access: yes, 2012
tRNA precursors, which are transcribed by RNA polymerase III, undergo end-maturation, splicing and base modifications. Hypomodified tRNAs, such as tRNAVal(AAC), lacking 7-methylguanosine and 5-methylcytidine modifications, are subject to degradation by a
Boguta, Magdalena   +3 more
core   +1 more source

New Methods in RNA Structural Biology: TELSAM Protein Chaperone Crystallography Applications to Folded RNA [PDF]

open access: yesStructural Dynamics
The multifaceted roles of RNA in cellular function are becoming increasingly apparent, and the importance of deepening our understanding of the function and structure of ribozymes and non-enzymatic RNAs will continue to grow.
Jacob C Averett   +4 more
doaj   +3 more sources

An RNA sponge controls quorum sensing dynamics and biofilm formation in Vibrio cholerae

open access: yesNature Communications, 2022
Small regulatory RNAs (sRNAs) often act in concert with the RNA-chaperone Hfq to regulate the expression of multiple target transcripts in bacteria.
Michaela Huber   +8 more
doaj   +1 more source

RNA misfolding and the action of chaperones [PDF]

open access: yesFrontiers in Bioscience, 2008
RNA folds to a myriad of three-dimensional structures and performs an equally diverse set of functions. The ability of RNA to fold and function in vivo is all the more remarkable because, in vitro, RNA has been shown to have a strong propensity to adopt misfolded, non-functional conformations.
openaire   +2 more sources

RNA-specific ribonucleotidyl transferases [PDF]

open access: yes, 2007
RNA-specific nucleotidyl transferases (rNTrs) are a diverse family of template-independent polymerases that add ribonucleotides to the 3'-ends of RNA molecules.
Keller, W.   +3 more
core   +1 more source

Sigma-1 receptor chaperones rescue nucleocytoplasmic transport deficit seen in cellular and Drosophila ALS/FTD models

open access: yesNature Communications, 2020
The (G4C2)-RNA hexanucleotide repeat expansion upstream of the start codon of the C9orf72 gene plays a critical role in familial ALS. The authors show that Sig1R, a ligand-regulated molecular chaperone, counteracts the aberrant nucleocytoplasmic ...
Pin-Tse Lee   +8 more
doaj   +1 more source

Chaperna: linking the ancient RNA and protein worlds

open access: yesRNA Biology, 2021
As a mental framework for the transition of self-replicating biological forms, the RNA world concept stipulates a dual function of RNAs as genetic substance and catalyst.
Ahyun Son, Scott Horowitz, Baik L. Seong
doaj   +1 more source

An essential role of KREPB4 in RNA editing and structural integrity of the editosome in Trypanosoma brucei [PDF]

open access: yes, 2007
RNA editing in the sleeping sickness parasite Trypanosoma brucei remodels mitochondrial transcripts by the addition and deletion of uridylates as specified by guide RNAs.
Schnaufer, Achim; id_orcid   +4 more
core   +1 more source

Hfq binding changes the structure of Escherichia coli small noncoding RNAs OxyS and RprA, which are involved in the riboregulation of rpoS [PDF]

open access: yes, 2013
: OxyS and RprA are two small noncoding RNAs (sRNAs) that modulate the expression of rpoS, encoding an alternative sigma factor that activates transcription of multiple Escherichia coli stress-response genes.
Taylor, James E.   +28 more
core   +1 more source

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