Results 71 to 80 of about 14,834 (261)

Predicting RNA pseudoknot folding thermodynamics [PDF]

open access: yesNucleic Acids Research, 2006
Based on the experimentally determined atomic coordinates for RNA helices and the self-avoiding walks of the P (phosphate) and C4 (carbon) atoms in the diamond lattice for the polynucleotide loop conformations, we derive a set of conformational entropy parameters for RNA pseudoknots.
Cao, Song, Chen, Shi-Jie
openaire   +2 more sources

Psyquandles, Singular Knots and Pseudoknots [PDF]

open access: yesTokyo Journal of Mathematics, 2019
20 ...
NELSON, Sam   +2 more
openaire   +4 more sources

RNA denaturation: excluded volume, pseudoknots and transition scenarios [PDF]

open access: yes, 2003
A lattice model of RNA denaturation which fully accounts for the excluded volume effects among nucleotides is proposed. A numerical study shows that interactions forming pseudoknots must be included in order to get a sharp continuous transition ...
A. L. Stella   +12 more
core   +1 more source

Altering SARS Coronavirus Frameshift Efficiency Affects Genomic and Subgenomic RNA Production

open access: yesViruses, 2013
In previous studies, differences in the amount of genomic and subgenomic RNA produced by coronaviruses with mutations in the programmed ribosomal frameshift signal of ORF1a/b were observed.
Ewan P. Plant   +4 more
doaj   +1 more source

NMR Studies of Genomic RNA in 3′ Untranslated Region Unveil Pseudoknot Structure that Initiates Viral RNA Replication in SARS-CoV-2

open access: yesJACS Au
In the 3′ untranslated region of the SARS-CoV-2 virus RNA genome, genomic RNA replication is initiated in the highly conserved region called 3′PK, containing three stem structures (P1pk, P2, and P5).
Takako Ohyama   +3 more
semanticscholar   +1 more source

Sequence-structure relations of pseudoknot RNA

open access: yesBMC Bioinformatics, 2009
Background The analysis of sequence-structure relations of RNA is based on a specific notion and folding of RNA structure. The notion of coarse grained structure employed here is that of canonical RNA pseudoknot contact-structures with at most two ...
Li Linda YM   +2 more
doaj   +1 more source

The 3′ Untranslated Region of a Plant Viral RNA Directs Efficient Cap-Independent Translation in Plant and Mammalian Systems

open access: yesPathogens, 2019
Many plant viral RNA genomes lack a 5′ cap, and instead are translated via a cap-independent translation element (CITE) in the 3′ untranslated region (UTR).
Jelena J. Kraft   +8 more
doaj   +1 more source

Investigating the correlation between Xrn1-resistant RNAs and frameshifter pseudoknots

open access: yesRNA Biology, 2023
Xrn1-resistant RNA structures are multifunctional elements employed by an increasing number of RNA viruses. One of such elements is the coremin motif, discovered in plant virus RNAs, of which the structure has been hypothesized to form a yet unelucidated
Ivar W. Dilweg   +3 more
doaj   +1 more source

Efficient known ncRNA search including pseudoknots

open access: yesBMC Bioinformatics, 2013
Background Searching for members of characterized ncRNA families containing pseudoknots is an important component of genome-scale ncRNA annotation. However, the state-of-the-art known ncRNA search is based on context-free grammar (CFG), which cannot ...
Yuan Cheng, Sun Yanni
doaj   +1 more source

Protein unties the pseudoknot: S1-mediated unfolding of RNA higher order structure

open access: yesNucleic Acids Research, 2019
Ribosomal protein S1 plays important roles in the translation initiation step of many Escherichia coli mRNAs, particularly those with weak Shine-Dalgarno sequences or structured 5′ UTRs, in addition to a variety of cellular processes beyond the ribosome.
P. E. Lund   +3 more
semanticscholar   +1 more source

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