Results 51 to 60 of about 21,167 (270)

Origin of the Genetic Code Is Found at the Transition between a Thioester World of Peptides and the Phosphoester World of Polynucleotides

open access: yesLife, 2019
The early metabolism arising in a Thioester world gave rise to amino acids and their simple peptides. The catalytic activity of these early simple peptides became instrumental in the transition from Thioester World to a Phosphate World.
Hyman Hartman, Temple F. Smith
doaj   +1 more source

Bloch oscillations of a soliton in a molecular chain [PDF]

open access: yesThe European Physical Journal B, 55, 85-87 (2007), 2013
The paper presents results of numerical experiments simulating Bloch oscillations of solitons in a deformable molecular chain in a constant electric field. By the example of a homogeneous polynucleotide chain it is shown that the system under consideration can demonstrate complicated dynamical regimes when at the field intensities less than a certain ...
arxiv   +1 more source

Solvation Effects on Hole Mobility in the Poly G/Poly C Duplex [PDF]

open access: yesRussian Journal of Physical Chemistry A, 86, 832-836 (2012), 2013
Theoretical calculations of solvation contribution to hole energy in a polynucleotide chain give very low hole mobility values at zero temperature, \mu < 10^{-3} cm^2/(V s). We calculated hole mobility at physiological temperature for the Poly G/Poly C DNA duplex, which gave substantially larger mobility values.
arxiv   +1 more source

L, D-Polydeoxyribonucleotides to provide an essential inhibitory effect on DNA polymerase β of human myeloid leukemia HL60 cells

open access: yesBiochemistry and Biophysics Reports, 2020
The inhibitory effect of D and L-polynucleotides of a given length (40-50n) on the catalytic activity of DNA polymerase β isolated from chromatin cells of acute myeloid leukemia HL-60 was evaluated. The synthesized L enantiomer was found to have a higher
S.V. Stovbun   +5 more
doaj  

Sequencing intractable DNA to close microbial genomes. [PDF]

open access: yesPLoS ONE, 2012
Advancement in high throughput DNA sequencing technologies has supported a rapid proliferation of microbial genome sequencing projects, providing the genetic blueprint for in-depth studies.
Richard A Hurt   +4 more
doaj   +1 more source

ShcD adaptor protein drives invasion of triple negative breast cancer cells by aberrant activation of EGFR signaling

open access: yesMolecular Oncology, EarlyView.
We identified adaptor protein ShcD as upregulated in triple‐negative breast cancer and found its expression to be correlated with reduced patient survival and increased invasion in cell models. Using a proteomic screen, we identified novel ShcD binding partners involved in EGFR signaling pathways.
Hayley R. Lau   +11 more
wiley   +1 more source

The Benzothiazine Core as a Novel Motif for DNA-Binding Small Molecules

open access: yesMolecules, 2023
A new series of 4H-1,3-benzothiazine dyes were prepared and fully characterized in an aqueous medium. Benzothiazine salts were synthesized either through the classical synthetic pathway using Buchwald–Hartwig amination or through economical and ...
Milena Mlakić   +10 more
doaj   +1 more source

Sequences for differential diagnostic of Ehrlichia ruminantium and use thereof [PDF]

open access: yes, 2006
The invention provides genes that are unique either to Ehrlichia ruminantium strain Gardel or to Ehrlichia ruminantium strain Welgevonden, or allelic couples which are present in both strains but whose sequences differ between the two strains, as genetic
Demaille, Jacques   +3 more
core  

Regulation of metabolism by miR-378 [PDF]

open access: yes, 2014
The present invention provides a method of regulating fatty acid metabolism in a cell by contacting the cell with a modulator of miR-378 and/or miR-378* activity or expression.
Carrer, Michele, Olson, Eric N.
core   +1 more source

Consolidate Overview of Ribonucleic Acid Molecular Dynamics: From Molecular Movements to Material Innovations

open access: yesAdvanced Engineering Materials, EarlyView.
Molecular dynamics simulations are advancing the study of ribonucleic acid (RNA) and RNA‐conjugated molecules. These developments include improvements in force fields, long‐timescale dynamics, and coarse‐grained models, addressing limitations and refining methods.
Kanchan Yadav, Iksoo Jang, Jong Bum Lee
wiley   +1 more source

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