Results 31 to 40 of about 357,564 (302)

RNA-interference components are dispensable for transcriptional silencing of the drosophila bithorax-complex.

open access: yesPLoS ONE, 2013
BackgroundBeyond their role in post-transcriptional gene silencing, Dicer and Argonaute, two components of the RNA interference (RNAi) machinery, were shown to be involved in epigenetic regulation of centromeric heterochromatin and transcriptional gene ...
Filippo M Cernilogar   +5 more
doaj   +1 more source

eIF4GI facilitates the MicroRNA-mediated gene silencing. [PDF]

open access: yesPLoS ONE, 2013
MicroRNAs (miRNAs) are small noncoding RNAs that mediate post-transcriptional gene silencing by binding to complementary target mRNAs and recruiting the miRNA-containing ribonucleoprotein complexes to the mRNAs.
Incheol Ryu   +4 more
doaj   +1 more source

Epigenetics in Friedreich's ataxia: Challenges and opportunities for therapy [PDF]

open access: yes, 2013
Copyright © 2013 Chiranjeevi Sandi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly ...
Al-Mahdawi, S, Pook, MA, Sandi, C
core   +2 more sources

RNA duplexes in transcriptional regulation

open access: yesBiomolecular Concepts, 2010
Transcriptional regulation by small RNA molecules, including small interfering RNA and microRNA, has emerged as an important gene expression modulator.
Swaminathan Sanjay   +3 more
doaj   +1 more source

In vivo expression of MHC class I genes depends on the presence of a downstream barrier element. [PDF]

open access: yesPLoS ONE, 2009
Regulation of MHC class I gene expression is critical to achieve proper immune surveillance. In this work, we identify elements downstream of the MHC class I promoter that are necessary for appropriate in vivo regulation: a novel barrier element that ...
Helit Cohen   +5 more
doaj   +1 more source

Functional Crosstalk between Lysine Methyltransferases on Histone Substrates: The Case of G9A/GLP and Polycomb Repressive Complex 2 [PDF]

open access: yes, 2015
Significance: Methylation of histone H3 on lysine 9 and 27 (H3K9 and H3K27) are two epigenetic modifications that have been linked to several crucial biological processes, among which are transcriptional silencing and cell differentiation.
Ait Si Ali, Slimane   +2 more
core   +2 more sources

RNA Silencing against Geminivirus: Complementary Action of Posttranscriptional Gene Silencing and Transcriptional Gene Silencing in Host Recovery [PDF]

open access: yesJournal of Virology, 2009
ABSTRACT RNA silencing in plants is a natural defense system mechanism against invading nucleic acids such as viruses. Geminiviruses, a family of plant viruses characterized by a circular, single-stranded DNA genome, are thought to be both inducers and targets of RNA silencing.
Edgar A, Rodríguez-Negrete   +2 more
openaire   +2 more sources

A petunia ethylene-responsive element binding factor, PhERF2, plays an important role in antiviral RNA silencing. [PDF]

open access: yes, 2016
Virus-induced RNA silencing is involved in plant antiviral defense and requires key enzyme components, including RNA-dependent RNA polymerases (RDRs), Dicer-like RNase III enzymes (DCLs), and Argonaute proteins (AGOs).
Jiang, Cai-Zhong   +5 more
core   +1 more source

Transcriptional Gene Silencing (TGS) via the RNAi Machinery in HIV-1 Infections

open access: yesBiology, 2012
Gene silencing via non-coding RNA, such as siRNA and miRNA, can occur at the transcriptional, post-transcriptional, and translational stages of expression.
Fatah Kashanchi   +7 more
doaj   +1 more source

Requirement for PBAF in transcriptional repression and repair at DNA breaks in actively transcribed regions of chromatin [PDF]

open access: yes, 2014
Actively transcribed regions of the genome are vulnerable to genomic instability. Recently, it was discovered that transcription is repressed in response to neighboring DNA double-strand breaks (DSBs).
Alex D. Herbert   +36 more
core   +1 more source

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