Results 21 to 30 of about 882,207 (290)

Hachimoji DNA and RNA: A genetic system with eight building blocks [PDF]

open access: yes, 2019
Reported here are DNA and RNA-like systems built from eight (hachi-) nucleotide letters (-moji) that form four orthogonal pairs. This synthetic genetic biopolymer meets the structural requirements needed to support Darwinism, including a polyelectrolyte ...
Bates, Alison M.   +15 more
core   +1 more source

Frozen section histopathology and preanalytical factors affecting nucleic acid integrity in biobanked fresh-frozen human cancer tissues [PDF]

open access: yesJournal of Pathology and Translational Medicine
Background In this study, we evaluated the effects of storage duration and ischemic time on nucleic acid quality of fresh-frozen tissue (FFT) from colon adenocarcinoma (COAD), hepatocellular carcinoma (HCC), and renal cell carcinoma (RCC) collected at ...
Soungeun Kim   +4 more
doaj   +1 more source

Hybridization Properties of RNA Containing 8-Methoxyguanosine and 8-Benzyloxyguanosine. [PDF]

open access: yesPLoS ONE, 2015
Modified nucleobase analogues can serve as powerful tools for changing physicochemical and biological properties of DNA or RNA. Guanosine derivatives containing bulky substituents at 8 position are known to adopt syn conformation of N-glycoside bond.
Daniel Sylwester Baranowski   +3 more
doaj   +1 more source

The prebiotic evolutionary advantage of transferring genetic information from RNA to DNA. [PDF]

open access: yes, 2011
In the early 'RNA world' stage of life, RNA stored genetic information and catalyzed chemical reactions. However, the RNA world eventually gave rise to the DNA-RNA-protein world, and this transition included the 'genetic takeover' of information storage ...
Chen, Irene A   +4 more
core   +4 more sources

The emerging role of RNA modifications in the regulation of mRNA stability

open access: yesExperimental and Molecular Medicine, 2020
Gene activity: the significance of RNA modification Messenger RNA molecules play their key role in directing the manufacture of proteins via translating the genetic information in DNA.
Sung Ho Boo, Yoon Ki Kim
doaj   +1 more source

Effects of RNA branching on the electrostatic stabilization of viruses [PDF]

open access: yes, 2016
Many single-stranded (ss) RNA viruses self assemble from capsid protein subunits and the nucleic acid to form an infectious virion. It is believed that the electrostatic interactions between the negatively charged RNA and the positively charged viral ...
Erdemci-Tandogan, Gonca   +4 more
core   +3 more sources

Stability of RNA virus attenuation approaches [PDF]

open access: yesVaccine, 2011
The greatest risk from live-attenuated vaccines is reversion to virulence. Particular concerns arise for RNA viruses, which exhibit high mutation frequencies. We examined the stability of 3 attenuation strategies for the alphavirus, Venezuelan equine encephalitis virus (VEEV): a traditional, point mutation-dependent attenuation approach exemplified by ...
Joan L, Kenney   +5 more
openaire   +2 more sources

Viruses and the cellular RNA decay machinery. [PDF]

open access: yes, 2010
The ability to control cellular and viral gene expression, either globally or selectively, is central to a successful viral infection, and it is also crucial for the host to respond and eradicate pathogens.
Gaglia, Marta, Glaunsinger, Britt
core   +1 more source

Immunostimulating capacities of stabilized RNA molecules [PDF]

open access: yesEuropean Journal of Immunology, 2004
AbstractSince direct injection of naked mRNA induces an immune response, we tested the capacity of RNA to signal danger. We show here that mRNA molecules that are protected from immediate degradation either through interaction with cationic proteins (trans protection) or through chemical modification of the phosphodiester backbone (phosphorothioate RNA;
Birgit, Scheel   +8 more
openaire   +2 more sources

Salt-Dependent RNA Pseudoknot Stability: Effect of Spatial Confinement

open access: yesFrontiers in Molecular Biosciences, 2021
Macromolecules, such as RNAs, reside in crowded cell environments, which could strongly affect the folded structures and stability of RNAs. The emergence of RNA-driven phase separation in biology further stresses the potential functional roles of ...
Chenjie Feng   +4 more
doaj   +1 more source

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