Results 11 to 20 of about 339,408 (350)

The Sm complex is required for the processing of non-coding RNAs by the exosome. [PDF]

PLoS ONE, 2013
A key question in the field of RNA regulation is how some exosome substrates, such as spliceosomal snRNAs and telomerase RNA, evade degradation and are processed into stable, functional RNA molecules.
Sarah Coy, Adam Volanakis, Sneha Shah, Lidia Vasiljeva   +3 more
doaj   +5 more sources

The Pyrococcus Exosome Complex [PDF]

Journal of Biological Chemistry, 2005
The exosome is a conserved eukaryotic enzymatic complex that plays an essential role in many pathways of RNA processing and degradation. Here, we describe the structural characterization of the predicted archaeal exosome in solution using small angle x-ray scattering. The structure model calculated from the small angle x-ray scattering pattern provides
Celso Raul Romero Ramos, Cristiano L. P. Oliveira, Í. Torriani, Carla C. Oliveira   +3 more
openalex   +5 more sources

CRABP1-complexes in exosome secretion

Cell Communication and Signaling
Background Cellular retinoic acid binding protein 1 (CRABP1) mediates rapid, non-canonical activity of retinoic acid (RA) by forming signalosomes via protein-protein interactions.
Jennifer Nhieu, Chin-Wen Wei, Megan Ludwig, Justin M. Drake, Li-Na Wei   +4 more
doaj   +3 more sources

The Rrp4-exosome complex recruits and channels substrate RNA by a unique mechanism. [PDF]

Nat Chem Biol, 2017
Cvetkovic MA, Wurm JP, Audin MJ, Schütz S, Sprangers R.   +4 more
europepmc   +3 more sources

A complex prediction: three‐dimensional model of the yeast exosome [PDF]

EMBO reports, 2002
We present a model of the yeast exosome based on the bacterial degradosome component polynucleotide phosphorylase (PNPase). Electron microscopy shows the exosome to resemble PNPase but with key differences likely related to the position of RNA binding domains, and to the location of domains unique to the exosome. We use various techniques to reduce the
Patrick Aloy, Francesca D. Ciccarelli, Christina Leutwein, Anne‐Claude Gavin, Giulio Superti‐Furga, Peer Bork, Bettina Böttcher, Robert B. Russell   +7 more
openalex   +7 more sources

Structure and regulation of the nuclear exosome targeting complex guides RNA substrates to the exosome [PDF]

Molecular Cell, 2022
In mammalian cells, spurious transcription results in a vast repertoire of unproductive non-coding RNAs, whose deleterious accumulation is prevented by rapid decay. The nuclear exosome targeting (NEXT) complex plays a central role in directing non-functional transcripts to exosome-mediated degradation, but the structural and molecular mechanisms remain
Gerlach, Piotr, Garland, William, Lingaraju, Mahesh, Salerno-Kochan, Anna, Bonneau, Fabien, Basquin, Jérôme, Jensen, Torben Heick, Conti, Elena   +7 more
openaire   +2 more sources

Post-transcriptional control of cellular differentiation by the RNA exosome complex. [PDF]

Nucleic Acids Res, 2020
Abstract Given the complexity of intracellular RNA ensembles and vast phenotypic remodeling intrinsic to cellular differentiation, it is instructive to consider the role of RNA regulatory machinery in controlling differentiation.
Fraga de Andrade I, Mehta C, Bresnick EH.   +2 more
europepmc   +5 more sources

CryoEM structure of yeast cytoplasmic exosome complex. [PDF]

Cell Res, 2016
The eukaryotic multi-subunit RNA exosome complex plays crucial roles in 3'-to-5' RNA processing and decay. Rrp6 and Ski7 are the major cofactors for the nuclear and cytoplasmic exosomes, respectively. In the cytoplasm, Ski7 helps the exosome to target mRNAs for degradation and turnover via a through-core pathway.
Liu JJ, Niu CY, Wu Y, Tan D, Wang Y, Ye MD, Liu Y, Zhao W, Zhou K, Liu QS, Dai J, Yang X, Dong MQ, Huang N, Wang HW.   +14 more
europepmc   +5 more sources

The Yeast Ski Complex: Crystal Structure and RNA Channeling to the Exosome Complex [PDF]

Cell, 2013
The Ski complex is a conserved multiprotein assembly required for the cytoplasmic functions of the exosome, including RNA turnover, surveillance, and interference. Ski2, Ski3, and Ski8 assemble in a tetramer with 1:1:2 stoichiometry. The crystal structure of an S. cerevisiae 370 kDa core complex shows that Ski3 forms an array of 33 TPR motifs organized
Felix Halbach, Peter Reichelt, Michaela Rode, Elena Conti   +3 more
openalex   +3 more sources

Autoantibodies directed to novel components of the PM/Scl complex, the human exosome [PDF]

Arthritis Research & Therapy, 2001
The autoantigenic polymyositis/scleroderma (PM/Scl) complex was recently shown to be the human homologue of the yeast exosome, which is an RNA-processing complex. Our aim was to assess whether, in addition to targeting the known autoantigens PM/Scl-100 and PM/Scl-75, autoantibodies also target recently identified components of the PM/Scl complex.
Rick Brouwer, Wilma TM Vree Egberts, G.J.D. Hengstman, Reinout Raijmakers, Baziel G.M. van Engelen, H. P. Seelig, Manfred Renz, Rudolf Mierau, E. Genth, Ger J.M. Pruijn, Walther J. van Venrooij   +10 more
openalex   +6 more sources