Results 21 to 30 of about 6,735 (249)

Roles of alternative splicing in infectious diseases: from hosts, pathogens to their interactions

open access: yesChinese Medical Journal, 2023
. Alternative splicing (AS) is an evolutionarily conserved mechanism that removes introns and ligates exons to generate mature messenger RNAs (mRNAs), extremely improving the richness of transcriptome and proteome. Both mammal hosts and pathogens require
Mengyuan Lyu   +8 more
doaj   +1 more source

Inhibición parcial de dos genes que codifican para proteínas del empalmosoma en Giardia intestinalis

open access: yesBiomédica: revista del Instituto Nacional de Salud, 2016
Introducción. Giardia intestinalis es un organismo tempranamente divergente en el que recientemente se demostró la presencia de intrones. La maquinaria responsable de la remoción de intrones en organismos eucariotas superiores es el empalmosoma, el cual ...
Vanessa Gómez, Moisés Wasserman
doaj   +1 more source

The target of the DEAH-box NTP triphosphatase Prp43 in Saccharomyces cerevisiae spliceosomes is the U2 snRNP-intron interaction

open access: yeseLife, 2016
The DEAH-box NTPase Prp43 and its cofactors Ntr1 and Ntr2 form the NTR complex and are required for disassembling intron-lariat spliceosomes (ILS) and defective earlier spliceosomes.
Jean-Baptiste Fourmann   +7 more
doaj   +1 more source

Retention of posttranscriptional spliceosomes in nuclear speckles until splicing completion. [PDF]

open access: yes, 2012
There is little quantitative information regarding how much splicing occurs co-transcriptionally in higher eukaryotes, and it remains unclear where precisely splicing occurs in the nucleus.
Hartmuth, K.   +8 more
core   +1 more source

Nuclear Pre-snRNA Export Is an Essential Quality Assurance Mechanism for Functional Spliceosomes

open access: yesCell Reports, 2019
Summary: Removal of introns from pre-mRNAs is an essential step in eukaryotic gene expression, mediated by spliceosomes that contain snRNAs as key components. Although snRNAs are transcribed in the nucleus and function in the same compartment, all except
Daniel Becker   +5 more
doaj   +1 more source

The RNA helicase ​Aquarius exhibits structural adaptations mediating its recruitment to spliceosomes. [PDF]

open access: yes, 2015
Aquarius is a multifunctional putative RNA helicase that binds precursor-mRNA introns at a defined position. Here we report the crystal structure of human Aquarius, revealing a central RNA helicase core and several unique accessory domains, including an ...
Henning Urlaub   +24 more
core   +1 more source

Cloning and tissue expression of alternative spliceosome in chicken G-protein alpha subunit gene

open access: yes浙江大学学报. 农业与生命科学版, 2019
In order to research deeply the transcription and splicing situations of chicken G-protein alpha subunit gene (GNAS), we used 5´ and 3´ rapid-amplification cDNA end (RACE) technology to clone and sequence the chicken GNAS gene, and used quantitative ...
ZHANG Xuedong   +6 more
doaj   +1 more source

Alternative Spliceosome Assembly Pathways Revealed by Single-Molecule Fluorescence Microscopy

open access: yesCell Reports, 2013
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

Therapeutic Targeting of Alternative Splicing: A New Frontier in Cancer Treatment

open access: yesFrontiers in Oncology, 2022
The ability for cells to harness alternative splicing enables them to diversify their proteome in order to carry out complex biological functions and adapt to external and internal stimuli. The spliceosome is the multiprotein-RNA complex charged with the
Anthony J. Murphy   +3 more
doaj   +1 more source

The spliceosome as a transposon sensor [PDF]

open access: yesRNA Biology, 2013
The ability to distinguish self from non-self nucleic acids enables eukaryotes to suppress mobile elements and maintain genome integrity. In organisms from protist to human, this function is performed by RNA silencing pathways. There have been major advances in our understanding of the RNA silencing machinery, but the mechanisms by which these pathways
Dumesic, Phillip A, Madhani, Hiten D
openaire   +4 more sources

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