Results 21 to 30 of about 10,117 (175)

Evidence for base-pairing between mammalian U2 and U6 small nuclear ribonucleoprotein particles. [PDF]

Genes & Development, 1990
Intramolecular and intermolecular snRNA cross-links were generated by irradiating HeLa nuclear extract with 365 nm light in the presence of the psoralen derivative AMT. After deproteinization, cross-linked RNAs were resolved by gel electrophoresis and identified as anomalously migrating species by Northern blotting. In addition to the U4/U6 snRNA cross-
T P, Hausner, L M, Giglio, A M, Weiner
openaire   +2 more sources

Functional mammalian spliceosomal complex E contains SMN complex proteins in addition to U1 and U2 snRNPs [PDF]

, 2011
Copyright @ 2011 The Authors. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0), which permits unrestricted non-commercial use ...
Abovich, Andrew Bottrill, Baccon, Batsche, Bedford, Behrens, Behzadnia, Behzadnia, Black, Brow, Campion, Charroux, Charroux, Das, Deckert, Dignam, Donmez, Donmez, Ester, Evgeny M. Makarov, Gozani, Gubitz, Hall, Hartmuth, Hernandez, Ishihama, Jurica, Kao, Kent, Kofler, Konarska, Kuhn, Lin, Luhrmann, Makarova, Makarova, Meister, Michaud, Michaud, Mourelatos, Neubauer, Nicholas Owen, Olga V. Makarova, Otter, Pellizzoni, Pellizzoni, Perkins, Rappsilber, Sharma, Sharma, Stark, Tanackovic, Wahl, Will, Will, Wolf, Wu, Wu, Xu, Young, Yu, Zhang, Zhou, Zillmann   +63 more
core   +2 more sources

Assembly of the U2 small nuclear ribonucleoprotein from Trypanosoma brucei. A mutational analysis

Journal of Biological Chemistry, 1993
trans-Splicing in trypanosomes requires the functions of U2 and U4/U6 small nuclear (sn) RNPs. We have analyzed protein binding and assembly of the Trypanosoma brucei U2 snRNP, using specific antibodies against U2 snRNP proteins and in vitro reconstitution assays of U2 deletion derivatives and human-trypanosome hybrid RNAs.
A, Günzl, M, Cross, Z, Palfi, A, Bindereif   +3 more
openaire   +2 more sources

Crystal Structure of Prp5p Reveals Interdomain Interactions that Impact Spliceosome Assembly

Cell Reports, 2013
The DEAD-box adenosine triphosphatase (ATPase) Prp5p facilitates U2 small nuclear ribonucleoprotein particle (snRNP) binding to the intron branch site region during spliceosome assembly. We present crystal structures of S.
Zhi-Min Zhang, Fei Yang, Jinru Zhang, Qing Tang, Jie Li, Jing Gu, Jiahai Zhou, Yong-Zhen Xu   +7 more
doaj   +1 more source

Liquid-Liquid Phase Separation: Mechanisms, Roles, and Implications in Cellular Function and Disease. [PDF]

FASEB Bioadv
Liquid–liquid phase separation (LLPS) is a fundamental biophysical process responsible for forming membraneless organelles involved in key cellular functions like chromatin organization and gene expression. Dysregulation of LLPS contributes to various diseases, including neurodegenerative disorders.
Thakur DK, Padole S, Sarkar T, Arumugam S, Chattopadhyay S.   +4 more
europepmc   +2 more sources

Interaction of yeast eIF4G with spliceosome components Implications in pre-mRNA processing events [PDF]

, 2009
International audienceAs evidenced from mammalian cells the eukaryotic translation initiation factor eIF4G has a putative role in nuclear RNA metabolism. Here we investigate whether this role is conserved in the yeast Saccharomyces cerevisiae.
Barrass, J. David, Beggs, Jean D., Fromont-Racine, Micheline, Jacquier, Alain, Kafasla, Panagiota, Lewis, Joe, Thompson, Elizabeth   +6 more
core   +2 more sources

Interaction Domains and Nuclear Targeting Signals in Subunits of the U2 Small Nuclear Ribonucleoprotein Particle-associated Splicing Factor SF3a [PDF]

Journal of Biological Chemistry, 2011
Human splicing factor SF3a is a component of the mature U2 small nuclear ribonucleoprotein particle (snRNP) and its three subunits of 60, 66, and 120 kDa are essential for splicing in vitro and in vivo. The SF3a heterotrimer forms in the cytoplasm and enters the nucleus independently of the U2 snRNP. Here, we have analyzed domains required for in vitro
Huang CJ, Ferfoglia F, Raleff F, Krämer A   +3 more
openaire   +3 more sources

Alternative Spliceosome Assembly Pathways Revealed by Single-Molecule Fluorescence Microscopy

Cell 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, Aaron A. Hoskins, Larry J. Friedman, Victor Serebrov, Ivan R. Corrêa, Jr., Ming-Qun Xu, Jeff Gelles, Melissa J. Moore   +7 more
doaj   +1 more source

The CUGBP2 splicing factor regulates an ensemble of branchpoints from perimeter binding sites with implications for autoregulation [PDF]

, 2009
Alternative pre-mRNA splicing adjusts the transcriptional output of the genome by generating related mRNAs from a single primary transcript, thereby expanding protein diversity.
Dembowski, JA, Grabowski, PJ
core   +5 more sources

Identification and Characterization of a Yeast Gene Encoding the U2 Small Nuclear Ribonucleoprotein Particle B″ Protein [PDF]

Molecular and Cellular Biology, 1996
The inessential yeast gene MUD2 encodes a protein factor that contributes to U1 small nuclear ribonucleoprotein particle (snRNP)-pre-mRNA complex (commitment complex) formation. To identify other genes that contribute to this early splicing step, we performed a synthetic lethal screen with a MUD2 deletion strain.
J, Tang, N, Abovich, M, Rosbash
openaire   +2 more sources