Results 21 to 30 of about 470,550 (372)

Nucleic acid-based biosensors: analytical devices for prevention, diagnosis and treatment of diseases

open access: yesVitae, 2021
BACKGROUND : Biosensing techniques have been the subject of exponentially increasing interest due to their performance advantages such as high selectivity and sensitivity, easy operation, low cost, short analysis time, simple sample preparation, and real-
Laura Carvajal Barbosa   +5 more
doaj   +1 more source

Design, synthesis, conformational analysis and nucleic acid hybridisation properties of thymidyl pyrrolidine-amide oligonucleotide mimics (POM) [PDF]

open access: yes, 2003
Pyrrolidine-amide oligonucleotide mimics (POM) 1 were designed to be stereochemically and conformationally similar to natural nucleic acids, but with an oppositely charged, cationic backbone.
Cooper, M.A.   +5 more
core   +1 more source

Molecular details of quinolone–DNA interactions: solution structure of an unusually stable DNA duplex with covalently linked nalidixic acid residues and non-covalent complexes derived from it [PDF]

open access: yes, 2005
Quinolones are antibacterial drugs that are thought to bind preferentially to disturbed regions of DNA. They do not fall into the classical categories of intercalators, groove binders or electrostatic binders to the backbone.
Altman   +50 more
core   +2 more sources

Solvent interactions stabilising nucleic acid conformers [PDF]

open access: yesNucleic Acids Research, 1989
The transition of oligonucleotides from the B to the A conformation has been studied by the use of simple geometric calculations aimed at finding possible hydration sites which could stabilize these conformations. The method involves the classification of equally spaced grid points, surrounding the oligonucleotide, into groups depending on whether a ...
Robert J. Elliott, Julia M. Goodfellow
openaire   +3 more sources

Nucleic Acid-tagged Peptides: Encoding Libraries and Controlling Dimerization and Conformation

open access: yesCHIMIA, 2013
Recent progress in the synthesis, screening, and self-assembly of nucleic acid–tagged peptidic libraries is reviewed.
Kalyan K. Sadhu, Nicolas Winssinger
doaj   +1 more source

Nucleotides: Structure and Properties [PDF]

open access: yes, 2005
Nucleotides consist of a nitrogen-containing base, a five-carbon sugar, and one or more phosphate groups. Cells contain many types of nucleotides, which play a central role in a wide variety of cellular processes, including metabolic regulation and the ...
Bowater, RP
core   +1 more source

Advances in the Determination of Nucleic Acid Conformational Ensembles [PDF]

open access: yesAnnual Review of Physical Chemistry, 2014
Conformational changes in nucleic acids play a key role in the way genetic information is stored, transferred, and processed in living cells. Here, we describe new approaches that employ a broad range of experimental data, including NMR-derived chemical shifts and residual dipolar couplings, small-angle X-ray scattering, and computational approaches ...
Loïc Salmon   +2 more
openaire   +3 more sources

Quantification bias caused by plasmid DNA conformation in quantitative real-time PCR assay. [PDF]

open access: yesPLoS ONE, 2011
Quantitative real-time PCR (qPCR) is the gold standard for the quantification of specific nucleic acid sequences. However, a serious concern has been revealed in a recent report: supercoiled plasmid standards cause significant over-estimation in qPCR ...
Chih-Hui Lin   +2 more
doaj   +1 more source

The cellular protein nucleolin preferentially binds long-looped G-quadruplex nucleic acids [PDF]

open access: yes, 2017
open5noBACKGROUND: G-quadruplexes (G4s) are four-stranded nucleic acid structures that form in G-rich sequences. Nucleolin (NCL) is a cellular protein reported for its functions upon G4 recognition, such as induction of neurodegenerative diseases, tumor
Elena Tosoni   +4 more
core   +1 more source

High intrinsic hydrolytic activity of cyanobacterial RNA polymerase compensates for the absence of transcription proofreading factors [PDF]

open access: yes, 2020
The vast majority of organisms possess transcription elongation factors, the functionally similar bacterial Gre and eukaryotic/archaeal TFIIS/TFS. Their main cellular functions are to proofread errors of transcription and to restart elongation via ...
James, Katherine   +2 more
core   +2 more sources

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