Results 31 to 40 of about 247,454 (281)

Structural and dynamic mechanisms for coupled folding and tRNA recognition of a translational T-box riboswitch

open access: yesNature Communications, 2023
T-box riboswitches are unique riboregulators where gene regulation is mediated through interactions between two highly structured RNAs. Despite extensive structural insights, how RNA-RNA interactions drive the folding and structural transitions of T-box ...
Xiaolin Niu   +5 more
doaj   +1 more source

A conformational RNA zipper promotes intron ejection during non-conventional XBP1 mRNA splicing. [PDF]

open access: yes, 2015
The kinase/endonuclease IRE1 is the most conserved signal transducer of the unfolded protein response (UPR), an intracellular signaling network that monitors and regulates the protein folding capacity of the endoplasmic reticulum (ER).
Acosta-Alvear, Diego   +3 more
core   +1 more source

Coupling Between Production of Ribosomal RNA and Maturation: Just at the Beginning

open access: yesFrontiers in Molecular Biosciences, 2021
Ribosomal RNA (rRNA) production represents the most active transcription in the cell. Synthesis of the large rRNA precursors (35S/47S in yeast/human) is achieved by up to hundreds of RNA polymerase I (Pol I) enzymes simultaneously transcribing a single ...
Chaima Azouzi   +7 more
doaj   +1 more source

RNA folding on the 3D triangular lattice

open access: yesBMC Bioinformatics, 2009
Background Difficult problems in structural bioinformatics are often studied in simple exact models to gain insights and to derive general principles. Protein folding, for example, has long been studied in the lattice model.
Mayne Martin   +2 more
doaj   +1 more source

On the predictibility of A-minor motifs from their local contexts

open access: yesRNA Biology, 2022
This study investigates the importance of the structural context in the formation of a type I/II A-minor motif. This very frequent structural motif has been shown to be important in the spatial folding of RNA molecules.
Coline Gianfrotta   +4 more
doaj   +1 more source

Synthetic biology tools to promote the folding and function of RNA aptamers in mammalian cells

open access: yesRNA Biology, 2023
RNA aptamers are structured RNAs that can bind to diverse ligands, including proteins, metabolites, and other small molecules. RNA aptamers are widely used as in vitro affinity reagents.
Qian Hou, Samie R. Jaffrey
doaj   +1 more source

Force-induced misfolding in RNA [PDF]

open access: yes, 2009
RNA folding is a kinetic process governed by the competition of a large number of structures stabilized by the transient formation of base pairs that may induce complex folding pathways and the formation of misfolded structures. Despite of its importance
D. Herschlag   +5 more
core   +3 more sources

Folding Kinetics of Large RNAs [PDF]

open access: yesJournal of Molecular Biology, 2008
We introduce here a heuristic approach to kinetic RNA folding that constructs secondary structures by stepwise combination of building blocks. These blocks correspond to subsequences and their thermodynamically optimal structures. These are determined by the standard dynamic programming approach to RNA folding.
Wolfinger, Michael   +8 more
openaire   +3 more sources

Thermodynamics of a model for RNA folding [PDF]

open access: yes, 2008
We analyze the thermodynamic properties of a simplified model for folded RNA molecules recently studied by G. Vernizzi, H. Orland, A. Zee (in {\it Phys. Rev. Lett.} {\bf 94} (2005) 168103).
F. Mandl   +7 more
core   +2 more sources

Modeling RNA Folding

open access: yes, 2007
In recent years it has become evident that functional RNAs in living organisms are not just curious remnants from a primordial RNA world but a ubiquitous phenomenon complementing protein enzyme based activity. Functional RNAs, just like proteins, depend in many cases upon their well-defined and evolutionarily conserved three-dimensional structure.
Hofacker, Ivo L., Stadler, Peter F.
openaire   +2 more sources

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