Results 51 to 60 of about 25,371 (268)

Mini‐Hairpin DNA: Extraordinarily Stable Structure and Its Applications

open access: yesChemistry – A European Journal, EarlyView.
Mini‐hairpin DNA fragments containing GCGAAGC and GCGAAAGC form exceptionally stable hairpin‐like structures, with only two G−C pairs and one sheared G−A pair, remaining undenatured in 7 M urea and resisting nuclease digestion. These mini‐hairpin sequences frequently appear in replication and transcription origins, influence DNA sequencing fidelity ...
Michiko Kimoto, Ichiro Hirao
wiley   +1 more source

RNA interference approaches for treatment of HIV-1 infection. [PDF]

open access: yes, 2015
HIV/AIDS is a chronic and debilitating disease that cannot be cured with current antiretroviral drugs. While combinatorial antiretroviral therapy (cART) can potently suppress HIV-1 replication and delay the onset of AIDS, viral mutagenesis often leads to
Bobbin, Maggie L   +2 more
core   +1 more source

RNAs That Behave Like Prions

open access: yesmSphere, 2020
The term “prion” was originally coined to describe the proteinaceous infectious agents involved in mammalian neurological disorders. More recently, a prion has been defined as a nonchromosomal, protein-based genetic element that is capable of converting ...
Arcady R. Mushegian, Santiago F. Elena
doaj   +3 more sources

Generation and Development of RNA Ligase Ribozymes with Modular Architecture Through “Design and Selection”

open access: yesMolecules, 2010
In vitro selection with long random RNA libraries has been used as a powerful method to generate novel functional RNAs, although it often requires laborious structural analysis of isolated RNA molecules.
Yuki Fujita   +3 more
doaj   +1 more source

Rational Design Strategies for Stimuli‐Responsive DNAzymes Using Modified and Artificial Nucleotides

open access: yesChemistry – A European Journal, EarlyView.
Activity control of RNA‐cleaving DNAzymes in response to external stimuli has attracted growing interest for applications in DNA‐based diagnostics, therapeutics, and dynamic DNA nanotechnology. This review summarizes rational design strategies for stimuli‐responsive DNAzymes using modified or artificial nucleotides, including split and caged DNAzymes ...
Yusuke Takezawa, Mitsuhiko Shionoya
wiley   +1 more source

In vitro Evolution and Engineering for Improved Ribozyme Polymerase Production [PDF]

open access: yes, 2011
According to the "RNA World Hypothesis" the first self replicating molecule formed from the prebiotic chemicals is the ribozyme. A model compartmentalized self replicating system for ribozyme polymerases is designed and used to improve activity,
Ayaz Ali Khan   +2 more
core   +1 more source

Selecting RNA aptamers for synthetic biology: investigating magnesium dependence and predicting binding affinity. [PDF]

open access: yes, 2010
The ability to generate RNA aptamers for synthetic biology using in vitro selection depends on the informational complexity (IC) needed to specify functional structures that bind target ligands with desired affinities in physiological concentrations of ...
Carothers, James M   +4 more
core   +2 more sources

Classification of the nucleolytic ribozymes based upon catalytic mechanism [version 1; peer review: 3 approved]

open access: yesF1000Research, 2019
The nucleolytic ribozymes carry out site-specific RNA cleavage reactions by nucleophilic attack of the 2′-oxygen atom on the adjacent phosphorus with an acceleration of a million-fold or greater.
David M.J. Lilley
doaj   +1 more source

The Effect of Environment on the Evolution and Proliferation of Protocells of Increasing Complexity

open access: yesLife, 2022
The formation, growth, division and proliferation of protocells containing RNA strands is an important step in ensuring the viability of a mixed RNA–lipid world.
Suvam Roy, Supratim Sengupta
doaj   +1 more source

Distinct 5′ UTR Requirements for Translation of the Bicistronic X/P mRNA Among Avian Orthobornaviruses

open access: yesMicrobiology and Immunology, EarlyView.
ABSTRACT Orthobornaviruses express X and the phosphoprotein (P) from a bicistronic X/P mRNA, and these proteins regulate polymerase activity. In mammalian orthobornaviruses, the 5′ untranslated region (5′ UTR) of the X/P mRNA controls the translational balance between X and P and thereby promotes efficient replication.
Meng‐Chi Wu   +7 more
wiley   +1 more source

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