Results 41 to 50 of about 160,310 (303)

Screening and Identification of Virus-Encoded RNA Silencing Suppressors [PDF]

open access: yes, 2008
RNA silencing, including RNA interference, is a novel method of gene regulation and one of the potent host-defense mechanisms against the viruses. In the course of evolution, the viruses have encoded proteins with the potential to suppress the host RNA silencing mechanism as a counterdefense strategy.
Karjee, Sumona   +2 more
openaire   +2 more sources

Acquisition of full-length viral helicase domains by insect retrotransposon-encoded polypeptides

open access: yesFrontiers in Microbiology, 2015
Recent metagenomic studies in insects identified many sequences unexpectedly closely related to plant virus genes. Here we describe a new example of this kind, insect R1 LINEs with an additional C-terminal domain in their open reading frame 2.
Ekaterina eLazareva   +4 more
doaj   +1 more source

Identification of Silencing Suppressor Protein Encoded by Strawberry Mottle Virus

open access: yesFrontiers in Plant Science, 2022
Strawberry mottle virus (SMoV) is associated with strawberry decline disease, causing losses to fruit yield and quality. In this study, using a screening system that enables detection of both local and systemic plant host (RNA silencing) defense ...
Lingjiao Fan   +8 more
doaj   +1 more source

LARP7 suppresses P-TEFb activity to inhibit breast cancer progression and metastasis. [PDF]

open access: yes, 2014
Transcriptional elongation by RNA polymerase (Pol) II is essential for gene expression during cell growth and differentiation. The positive transcription elongation factor b (P-TEFb) stimulates transcriptional elongation by phosphorylating Pol II and ...
Ji, Xiaodan   +3 more
core   +3 more sources

Transcriptomic profiling disclosed the role of DNA methylation and histone modifications in tumor-infiltrating myeloid-derived suppressor cell subsets in colorectal cancer [PDF]

open access: yes, 2020
Increased numbers of myeloid-derived suppressor cells (MDSCs) are positively correlated with poor prognosis and reduced survivals of cancer patients. They play central roles in tumor immune evasion and tumor metastasis.
Abu Nada, M   +9 more
core   +3 more sources

Aspergillus Mycoviruses Are Targets and Suppressors of RNA Silencing [PDF]

open access: yesEukaryotic Cell, 2008
ABSTRACT RNA silencing can function as a virus defense mechanism in a diverse range of eukaryotes, and many viruses are capable of suppressing the silencing machinery targeting them. However, the extent to which this occurs between fungal RNA silencing and mycoviruses is unclear.
T M, Hammond   +3 more
openaire   +2 more sources

Olive Mild Mosaic Virus Coat Protein and P6 Are Suppressors of RNA Silencing, and Their Silencing Confers Resistance against OMMV

open access: yesViruses, 2018
RNA silencing is an important defense mechanism in plants, yet several plant viruses encode proteins that suppress this mechanism. In this study, the genome of the Olive mild mosaic virus (OMMV) was screened for silencing suppressors.
Carla MR Varanda   +5 more
doaj   +1 more source

Nucleotide bias of DCL and AGO in plant anti-virus gene silencing [PDF]

open access: yes, 2010
Plant Dicer-like (DCL) and Argonaute (AGO) are the key enzymes involved in anti-virus post-transcriptional gene silencing (AV-PTGS). Here we show that AV-PTGS exhibited nucleotide preference by calculating a relative AV-PTGS efficiency on processing ...
Dalmay, Tamas   +8 more
core   +1 more source

Cucurbit Chlorotic Yellows Virus p22 Protein Interacts with Cucumber SKP1LB1 and Its F-Box-Like Motif Is Crucial for Silencing Suppressor Activity

open access: yesViruses, 2019
Plants use RNA silencing as a defense against viruses. In response, viruses encode various RNA silencing suppressors to counteract the antiviral silencing.
Siyu Chen   +9 more
doaj   +1 more source

DNMT3B in vitro knocking-down is able to reverse embryonal rhabdomyosarcoma cell phenotype through inhibition of proliferation and induction of myogenic differentiation [PDF]

open access: yes, 2016
Aberrant DNA methylation has been frequently observed in many human cancers, including rhabdomyosarcoma (RMS), the most common soft tissue sarcoma in children.
Camero, Simona   +11 more
core   +1 more source

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