Results 101 to 110 of about 757,384 (292)
Natural circularly permuted group II introns in bacteria produce RNA circles
iScience, 2021 Summary: Group II self-splicing introns are large structured RNAs that remove themselves from transcripts while simultaneously sealing the resulting gaps.
Adam Roth +4 more
doaj
Evidence for a group II intron-like catalytic triplex in the spliceosome
Nature Structural &Molecular Biology, 2014 To catalyze pre-mRNA splicing, U6 small nuclear RNA positions two metals that interact directly with the scissile phosphates. U6 metal ligands correspond stereospecifically to metal ligands within the catalytic domain V of a group II self-splicing intron.
S. Fica +3 more
semanticscholar +1 more source
FEBS Open Bio, EarlyView.Long non‐coding RNAs (lncRNAs) occupy an abundant fraction of the eukaryotic transcriptome and an emerging area in cancer research. Regulation by lncRNAs is based on their subcellular localization in HNSCC. This cartoon shows the various functions of lncRNAs in HNSCC discussed in this review.
Ellen T. Tran +3 more
wiley +1 more source
Structural basis for exon recognition by a group II intron [PDF]
Nature Structural & Molecular Biology, 2008 Free group II introns are infectious retroelements that can bind and insert themselves into RNA and DNA molecules via reverse splicing. Here we report the 3.4-A crystal structure of a complex between an oligonucleotide target substrate and a group IIC intron, as well as the refined free intron structure.
Kevin S. Keating +4 more
openaire +3 more sources
Evolution of RNA-protein interactions: non-specific binding led to RNA splicing activity of fungal mitochondrial tyrosyl-tRNA synthetases. [PDF]
PLoS Biology, 2014 The Neurospora crassa mitochondrial tyrosyl-tRNA synthetase (mtTyrRS; CYT-18 protein) evolved a new function as a group I intron splicing factor by acquiring the ability to bind group I intron RNAs and stabilize their catalytically active RNA structure ...
Lilian T Lamech +2 more
doaj +1 more source
The role of circular RNAs in regulating cytokine signaling in cancer
FEBS Open Bio, EarlyView.Cytokines present in the tumor microenvironment fuel cancer development. Aberrant expression of circRNAs contributes to cancer progression. Cytokines are involved in regulating circRNA biogenesis. Furthermore, aberrantly expressed circRNAs regulate the expression of ligands, receptors, and downstream effectors involved in cytokine signaling to promote ...
Vandana Joshi +4 more
wiley +1 more source
UDP‐glucose dehydrogenase variants cause dystroglycanopathy
Annals of Clinical and Translational Neurology, EarlyView.Abstract UDP‐glucose dehydrogenase (UGDH) variants have been associated with hypotonia, developmental delay, and epilepsy. We report the first pathologic evidence of dystroglycanopathy in siblings with UGDH variants. Both presented around 6 months with developmental delay and elevated creatinine kinase.
Anna M. Reelfs +8 more
wiley +1 more source
Mitochondrial DNA. Part B. Resources, 2020 We describe the plastome of Jenufa minuta, a unicellular green alga whose precise relationship with the Sphaeropleales (Chlorophyceae) remains uncertain.
Monique Turmel +3 more
doaj +1 more source
An organellar maturase associates with multiple group II introns [PDF]
Proceedings of the National Academy of Sciences, 2010 Bacterial group II introns encode maturase proteins required for splicing. In organelles of photosynthetic land plants, most of the group II introns have lost the reading frames for maturases. Here, we show that the plastidial maturase MatK not only interacts with its encoding intron within trnK -UUU, but also with ...
Reimo Zoschke +5 more
openaire +3 more sources
FGF14 GAA Intronic Expansion in Unsolved Adult‐Onset Ataxia in the Care4Rare Canada Consortium
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background and Objectives Spinocerebellar ataxias (SCA) represent a clinically and genetically heterogeneous group of progressive neurodegenerative diseases with prominent cerebellar atrophy. Recently, a novel pathogenic repeat expansion in intron 1 of FGF14 was identified, causing adult‐onset SCA (SCA27B). We aimed to determine the proportion
Alexanne Cuillerier +20 more
wiley +1 more source