Results 31 to 40 of about 62,378 (298)

Meiotic gene silencing complex MTREC/NURS recruits the nuclear exosome to YTH-RNA-binding protein Mmi1.

open access: yesPLoS Genetics, 2020
Accurate target recognition in transcript degradation is crucial for regulation of gene expression. In the fission yeast Schizosaccharomyces pombe, a number of meiotic transcripts are recognized by a YTH-family RNA-binding protein, Mmi1, and selectively ...
Yuichi Shichino   +3 more
doaj   +1 more source

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

open access: yesPLoS 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   +3 more
doaj   +1 more source

Human Telomerase RNA Processing and Quality Control

open access: yesCell Reports, 2015
The non-coding RNA subunit of telomerase provides the template for telomerase activity. In diverse fungi, 3′ end processing of telomerase RNA involves a single cleavage by the spliceosome.
Chi-Kang Tseng   +5 more
doaj   +1 more source

The RNA Exosome Channeling and Direct Access Conformations Have Distinct In Vivo Functions

open access: yesCell Reports, 2016
The RNA exosome is a 3′–5′ ribonuclease complex that is composed of nine core subunits and an essential catalytic subunit, Rrp44. Two distinct conformations of Rrp44 were revealed in previous structural studies, suggesting that Rrp44 may change its ...
Jaeil Han, Ambro van Hoof
doaj   +1 more source

Reduced O-GlcNAcylation of SNAP-23 promotes cisplatin resistance by inducing exosome secretion in ovarian cancer

open access: yesCell Death Discovery, 2021
Exosomes have been associated with chemoresistance in various cancers, but such a role in ovarian cancer is not yet clear. Here, using in vitro cell-based and in vivo mouse model experiments, we show that downregulation of O-GlcNAcylation, a key post ...
Luomeng Qian   +11 more
doaj   +1 more source

A global function for transcription factors in assisting RNA polymerase II termination. [PDF]

open access: yes, 2017
The role of transcription factors (TFs) on nucleosome positioning, RNA polymerase recruitment, and transcription initiation has been extensively characterized.
Chanfreau, Guillaume F, Roy, Kevin
core   +1 more source

Mpp6 Incorporation in the Nuclear Exosome Contributes to RNA Channeling through the Mtr4 Helicase

open access: yesCell Reports, 2017
The RNA-degrading exosome mediates the processing and decay of many cellular transcripts. In the yeast nucleus, the ubiquitous 10-subunit exosome core complex (Exo-9–Rrp44) functions with four conserved cofactors (Rrp6, Rrp47, Mtr4, and Mpp6 ...
Sebastian Falk   +4 more
doaj   +1 more source

iCLIP analysis of RNA substrates of the archaeal exosome

open access: yesBMC Genomics, 2020
Background The archaeal exosome is an exoribonucleolytic multiprotein complex, which degrades single-stranded RNA in 3′ to 5′ direction phosphorolytically. In a reverse reaction, it can add A-rich tails to the 3′-end of RNA.
Jochen Bathke   +9 more
doaj   +1 more source

Interaction vesicles as emerging mediators of host‐pathogen molecular crosstalk and their implications for infection dynamics

open access: yesFEBS Letters, EarlyView.
Interaction extracellular vesicles (iEVs) are hybrid vesicles formed through host‐pathogen communication. They facilitate immune evasion, transfer pathogens' molecules, increase host cell uptake, and enhance virulence. This Perspective article illustrates the multifunctional roles of iEVs and highlights their emerging relevance in infection dynamics ...
Bruna Sabatke   +2 more
wiley   +1 more source

Acoustofluidics for simultaneous nanoparticle-based drug loading and exosome encapsulation

open access: yesMicrosystems & Nanoengineering, 2022
Nanocarrier and exosome encapsulation has been found to significantly increase the efficacy of targeted drug delivery while also minimizing unwanted side effects.
Zeyu Wang   +7 more
doaj   +1 more source

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