Results 51 to 60 of about 6,327 (242)

Retention of posttranscriptional spliceosomes in nuclear speckles until splicing completion.

, 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., Makarov, E., Lemm, I., Girard, C., Will, C., Kastner, B., Peng, J., Urlaub, H., Lührmann, R.   +8 more
core   +1 more source

Prominent Movement Disorders in RNU2‐2‐Related Spliceosomopathy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Pediatric movement disorders often overlap with neurodevelopmental diseases, suggesting shared molecular mechanisms. Variants in small nuclear RNA (snRNA) genes encoding spliceosome components have recently been associated with neurodevelopmental disorders, termed “RNUopathies.” We analyzed genome sequencing data from 14 patients with ...
Magdalena Krygier, Ugo Sorrentino, Matias Wagner, Marta Zawadzka, Anna Lemska, Maria Mazurkiewicz‐Bełdzińska, Michael Zech   +6 more
wiley   +1 more source

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

, 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, Dos Santos, K., Pena, V., Will, Cindy L., Urlaub, Henning, Karine dos Santos, Will, C.L., Sessonov, Sergey, Hofele, Romina V., De, Inessa, Reinhard Lührmann, Bessonov, S., Luehrmann, Reinhard, Pena, Vladimir, Urlaub, H., Cindy L Will, Sergey Bessonov, De, I., Will, C., Inessa De, Romina Hofele, dos Santos, Karine, Vladimir Pena, Lührmann, R., Hofele, R.   +24 more
core   +1 more source

SnapShot: Spliceosome Dynamics I

Cell, 2015
Spliceosomes are multi-megadalton RNA-protein molecular machines that carry out pre-mRNA splicing, that is, the removal of non-coding intervening sequences (introns) from eukaryotic pre-mRNAs and the ligation of neighboring coding regions (exons) to produce mature mRNA for protein biosynthesis on the ribosome.
Wahl, M., Lührmann, R.
openaire   +7 more sources

Human spliceosomal snRNA sequence variants generate variant spliceosomes

RNA, 2021
Human pre-mRNA splicing is primarily catalyzed by the major spliceosome, comprising five small nuclear ribonucleoprotein complexes, U1, U2, U4, U5, and U6 snRNPs, each of which contains the corresponding U-rich snRNA. These snRNAs are encoded by large gene families exhibiting significant sequence variation, but it remains unknown if most human snRNA ...
Justin W. Mabin, Peter W. Lewis, David A. Brow, Heidi Dvinge   +3 more
openaire   +2 more sources

Spliceosome Mutations in Uveal Melanoma [PDF]

International Journal of Molecular Sciences, 2020
Uveal melanoma (UM) is the most common primary intraocular malignancy of the eye. It has a high metastatic potential and mainly spreads to the liver. Genetics play a vital role in tumor classification and prognostication of UM metastatic disease. One of the driver genes mutated in metastasized UM is subunit 1 of splicing factor 3b (SF3B1), a component ...
Josephine Q.N. Nguyen, Wojtek Drabarek, Serdar Yavuzyigitoglu, Eva Medico Salsench, Robert M. Verdijk, Nicole C. Naus, Annelies de Klein, Emine Kiliç, Erwin Brosens   +8 more
openaire   +2 more sources

Engineering of Glioblastoma‐Derived Biomimetic Vesicles and Their Structural and Molecular Features

Advanced Healthcare Materials, EarlyView.
ABSTRACT Biomimetic nanosystems and vesicles have arisen as a novel approach to design vesicular transport systems with diverse therapeutic potential. The ‘biomimetic’ strategy involves the integration of cell membrane components into lipid bilayers, conferring them with biological properties originating from the cell of origin. Until now, most studies
Noelia Hernández‐Lobato, Hanan Abumanhal‐Masarweh, Martí de Cabo, Pablo Guerra, Marilena Hadjidemetriou, Neus Lozano, Kostas Kostarelos   +6 more
wiley   +1 more source

Assembly of ribosomes and spliceosomes: complex ribonucleoprotein machines.

, 2018
Ribosomes and spliceosomes are ribonucleoprotein nanomachines that catalyze translation of mRNA to synthesize proteins and splicing of introns from pre-mRNAs, respectively.
Jonathan P. Staley (5062994), John Woolford (3887968)   +1 more
core   +1 more source

Challenging the spliceosome machine [PDF]

Genome Biology, 2006
Abstract Background Using cDNA copies of transcripts and corresponding genomic sequences from the Berkeley Drosophila Genome Project, a set of 24,753 donor and acceptor splice sites were computed with a scanning algorithm that tested for single nucleotide insertion, deletion and substitution ...
Weir, Michael, Eaton, Matthew, Rice, Michael   +2 more
openaire   +2 more sources

RNA Helicase DDX21 Controls CD4+ T Cell Proliferation and Promotes Inflammatory Bowel Disease via Translational Control

Advanced Science, EarlyView.
ABSTRACT Inflammatory bowel disease (IBD) is characterized by dysregulated T cell responses. RNA helicases, including DExD‐box helicase 21 (DDX21), are pivotal in RNA metabolism, but their role in T cell‐mediated pathology during IBD remains unclear. Here, we demonstrate that DDX21 expression in CD4+ T cells correlates with cell cycle and translation ...
Yujuan Zhang, Chen Kan, Xinhui Yang, Yajuan Hao, Xuemin Cai, Mei Yang, Qianqian Zhang, Zhengting Wang, Ning Jiang, Lei Wang, Hua‐Bing Li, Jing Zhou   +11 more
wiley   +1 more source