Results 91 to 100 of about 13,335 (199)
Summary Myrothamnus flabellifolia is a dioecious resurrection plant endemic to southern Africa that has become an important model for understanding desiccation tolerance. Despite its ecological and medicinal significance, genomic and transcriptomic resources for the species are limited.
Rose A. Marks +21 more
wiley +1 more source
Prp5 bridges U1 and U2 snRNPs and enables stable U2 snRNP association with intron RNA [PDF]
Communication between U1 and U2 snRNPs is critical during pre-spliceosome assembly; yet, direct connections have not been observed. To investigate this assembly step, we focused on Prp5, an RNA-dependent ATPase of the DExD/H family. We identified homologs of Saccharomyces cerevisiae Prp5 in humans (hPrp5) and Schizosaccharomyces pombe (SpPrp5), and ...
Yong-Zhen, Xu +5 more
openaire +2 more sources
Polypyrimidine-tract binding protein PTBP1 can repress splicing during the exon definition phase of spliceosome assembly, but the assembly steps leading to an exon definition complex (EDC) and how PTBP1 might modulate them are not clear.
Somsakul Pop Wongpalee +5 more
doaj +1 more source
Circadian rhythms and post-transcriptional regulation in higher plants [PDF]
The circadian clock of plants allows them to cope with daily changes in their environment. This is accomplished by the rhythmic regulation of gene expression, in a process that involves many regulatory steps.
Romanowski, Andrés +1 more
core +3 more sources
Autoantibodies in COVID‐19 convalescent plasma donors
Abstract Background and Objectives Although COVID‐19 convalescent plasma (CCP) has been successfully used to treat several viral infections, its effectiveness in neutralizing severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) and its broader immunological safety remain debated.
Katerina Jazbec Gradišar +5 more
wiley +1 more source
The U1 snRNP Base Pairs with the 5′ Splice Site within a Penta-snRNP Complex [PDF]
Recognition of the 5' splice site is an important step in mRNA splicing. To examine whether U1 approaches the 5' splice site as a solitary snRNP or as part of a multi-snRNP complex, we used a simplified in vitro system in which a short RNA containing the 5' splice site sequence served as a substrate in a binding reaction.
Hadar, Malca, Noam, Shomron, Gil, Ast
openaire +2 more sources
Prp3 is an essential U4/U6 di-snRNP-associated protein whose functions and molecular mechanisms in pre-mRNA splicing are presently poorly understood. We show by structural and biochemical analyses that Prp3 contains a bipartite U4/U6 di-snRNA-binding ...
Sunbin Liu +9 more
doaj +1 more source
Loss of the frequently mutated chromatin remodeler ARID1A, a subunit of the SWI/SNF cBAF complex, results in less open chromatin, alternative splicing, and the failure to stop cells from progressing through the cell cycle after DNA damage in bladder (cancer) cells. Created in BioRender. Epigenetic regulators, such as the SWI/SNF complex, with important
Rebecca M. Schlösser +11 more
wiley +1 more source
Summary: The catalytic role of U6 snRNP in pre-mRNA splicing has been well established. In this study, we utilize an antisense morpholino oligonucleotide (AMO) specifically targeting catalytic sites of U6 snRNA to achieve functional knockdown of U6 snRNP
Qiumin Feng +7 more
doaj +1 more source
Alternative Spliceosome Assembly Pathways Revealed by Single-Molecule Fluorescence Microscopy
Removal of introns from nascent transcripts (pre-mRNAs) by the spliceosome is an essential step in eukaryotic gene expression. Previous studies have suggested that the earliest steps in spliceosome assembly in yeast are highly ordered and the stable ...
Inna Shcherbakova +7 more
doaj +1 more source

