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Viral RNAs Are Unusually Compact [PDF]
A majority of viruses are composed of long single-stranded genomic RNA molecules encapsulated by protein shells with diameters of just a few tens of nanometers. We examine the extent to which these viral RNAs have evolved to be physically compact molecules to facilitate encapsulation. Measurements of equal-length viral, non-viral, coding and non-coding
Gopal, Ajaykumar+6 more
openaire +10 more sources
VGEA: an RNA viral assembly toolkit. [PDF]
Next generation sequencing (NGS)-based studies have vastly increased our understanding of viral diversity. Viral sequence data obtained from NGS experiments are a rich source of information, these data can be used to study their epidemiology, evolution, transmission patterns, and can also inform drug and vaccine design.
Oluniyi PE+13 more
europepmc +6 more sources
A viral deubiquitylating enzyme targets viral RNA-dependent RNA polymerase and affects viral infectivity [PDF]
Selective protein degradation via the ubiquitin-proteasome system (UPS) plays an essential role in many major cellular processes, including host-pathogen interactions. We previously reported that the tightly regulated viral RNA-dependent RNA polymerase (RdRp) of the positive-strand RNA virus Turnip yellow mosaic virus (TYMV) is degraded by the UPS in ...
Chenon, Mélanie+3 more
openaire +4 more sources
RNA Interference for Viral Infections [PDF]
The treatment of viral infections has relied on pre-emptive vaccination or use of a limited range of anti-viral drugs. However, the majority of viruses have no available drugs and treatment is merely supportive. RNA interference (RNAi) offers the ability to directly and rapidly treat virus infections via the targeting of viral genes.
Nigel A.J. McMillan+3 more
openaire +4 more sources
Viral suppression of RNA silencing [PDF]
يلعب إسكات الجينات (إسكات الحمض النووي الريبي) دورًا أساسيًا في الدفاع المضاد للفيروسات في النباتات والفطريات واللافقاريات. تقوم الفيروسات بتشفير البروتينات التي تمنع إسكات الجينات لمواجهة دفاع المضيف. تم تحديد المثبطات الفيروسية لإسكات الحمض النووي الريبي (RSVs) من جميع الفيروسات النباتية تقريبًا التي تولد وبعض فيروسات الحشرات والثدييات. كشفت الدراسات
Lin Jiang, Chunhong Wei, Yang Li
openaire +3 more sources
Viral RNA as a Branched Polymer
24 pages, 9 ...
Vaupotič, Domen+4 more
openaire +3 more sources
Viral sensing by RNA helicases
A key aspect of antiviral immunity is the distinction between "self" and "non-self" components. This distinction can be established through the detection of double-stranded RNA (dsRNA), a common sign of viral infection, by cytosolic RNA helicases.
Rousseau, Claire, Meignin, Carine
openaire +8 more sources
Many lines of recent evidence indicate that non-coding RNAs including micro RNAs (miRNAs) and small interfering RNAs (siRNAs) play an important role in the control of gene expression in diverse cellular processes and in defense responses against molecular parasites such as viruses and transposons.
Hiro-oki Iwakawa, Testuro Okuno
openaire +4 more sources
Regulation of PKR By Viral RNAS [PDF]
PKR is an interferon-induced kinase that plays a key role in the innate immunity response to viral infection. Upon binding dsRNA, PKR undergoes autophosphorylation reactions that activate the kinase. We have investigated the mechanism of PKR activation by two viral RNAs that regulate PKR. HIV-I TAR is a 23 bp RNA hairpin with three bulges that is known
James L. Cole+6 more
openaire +2 more sources
The Unusual Compactness of Viral RNA [PDF]
We present complementary experimental and computational studies of the relative sizes of equal-length long single-stranded (ss) RNA molecules. Comparison of viral, non-viral, coding and non-coding RNAs of length 2117 nucleotides (nt) shows viral RNA to have among the highest gel-mobilities and smallest hydrodynamic radii in solution.
Ajaykumar Gopal+6 more
openaire +2 more sources