Results 101 to 110 of about 844,830 (315)

Influence of genome-scale RNA structure disruption on the replication of murine norovirus--similar replication kinetics in cell culture but attenuation of viral fitness in vivo [PDF]

open access: yes, 2013
Mechanisms by which certain RNA viruses, such as hepatitis C virus, establish persistent infections and cause chronic disease are of fundamental importance in viral pathogenesis.
Evans, David J   +8 more
core   +1 more source

IMPDH inhibition enhances cytarabine efficacy in SAMHD1‐expressing leukaemia cells via guanine nucleotide depletion

open access: yesMolecular Oncology, EarlyView.
Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla   +9 more
wiley   +1 more source

Mycoviruses, RNA Silencing, and Viral RNA Recombination [PDF]

open access: yes, 2011
In contrast to viruses of plants and animals, viruses of fungi, mycoviruses, uniformly lack an extracellular phase to their replication cycle. The persistent, intracellular nature of the mycovirus life cycle presents technical challenges to experimental design. However, these properties, coupled with the relative simplicity and evolutionary position of
openaire   +2 more sources

CCDC80 suppresses high‐grade serous ovarian cancer migration via negative regulation of B7‐H3

open access: yesMolecular Oncology, EarlyView.
PAX8 is a lineage‐specific master regulator of transcription in high‐grade serous ovarian cancer (HGSC) progression. We show for the first time that PAX8 facilitates proliferation and metastasis by repressing the cell autonomous tumor suppressor CCDC80 and inducing B7‐H3 expression.
Aya Saleh   +12 more
wiley   +1 more source

Functional domains of the influenza A virus PB2 protein:identification of NP- and PB1-binding sites [PDF]

open access: yes, 2004
Influenza virus genomic RNA segments are packaged into ribonucleoprotein (RNP) structures by the PB1, PB2, and PA subunits of an RNA polymerase and a single-strand RNA-binding nucleoprotein (NP).
Poole, Emma   +4 more
core   +1 more source

IN VITRO SYNTHESIS OF VIRAL RNA BY THE POLIOVIRUS RNA POLYMERASE [PDF]

open access: yesProceedings of the National Academy of Sciences, 1964
Infection of cultured mammalian cells by either Mengovirus or poliovirus causes the appearance of a new cytoplasmic RNA polymerase. The enzymes induced by the two viruses are quite similar. Both show a requirement for magnesium ions, are inhibited by manganese ions, require all four nucleoside triphosphates for maximal activity, and catalyze the ...
openaire   +3 more sources

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

open access: yesMolecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source

The effects of early syphilis on CD4 counts and HIV-1 RNA viral loads in blood and semen [PDF]

open access: yes, 2005
Objective: To examine the effect of early syphilis on blood and semen plasma HIV-1 viral loads and CD4 counts.Methods: In a retrospective case-control study, blood plasma HIV-1 viral loads and CD4 counts in cases during early syphilis ( n = 63, 27 ...
Weller, IVD   +8 more
core  

Molecular genetic analysis of siRNA biogenesis and function in Arabidopsis thaliana [PDF]

open access: yes, 2009
In diverse eukaryotes, small RNA products of Dicer-like (DCL) proteins regulate mRNA stability or translation, and direct chromatin modifications to genomic regions, phenomena collectively known as RNA silencing.
Blevins, Todd Lucas
core   +1 more source

Ribosomal frameshifting on viral RNAs

open access: yesJournal of General Virology, 1995
Introduction. Accurate maintenance of the translational reading frame by ribosomes is essential for the production of functional proteins and unsurprisingly, errors in frame maintenance have been estimated to occur at rates probably lower than 5 × 10-5 per codon (Kurland, 1992).
openaire   +2 more sources

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