Results 41 to 50 of about 1,859,090 (336)

Theory of phase segregation in DNA assemblies containing two different base pair sequence types [PDF]

open access: yes, 2016
Spontaneous pairing of homologous DNA sequences – a challenging subject in molecular biophysics, often referred to as ‘homology recognition’ – ha s been observed in vitro for several DNA system s a . One of th e se experiments involved liquid crystalline
Kornyshev, AA, Lee, DJ, Wynveen, A
core   +1 more source

Sequence-dependent base pair stepping dynamics in XPD helicase unwinding

open access: yeseLife, 2013
Helicases couple the chemical energy of ATP hydrolysis to directional translocation along nucleic acids and transient duplex separation. Understanding helicase mechanism requires that the basic physicochemical process of base pair separation be ...
Zhi Qi   +3 more
doaj   +1 more source

Dynamics of base pairs with low stability in RNA by solid-state nuclear magnetic resonance exchange spectroscopy

open access: yesiScience, 2022
Summary: Base pairs are fundamental building blocks of RNA. The base pairs of low stability are often critical in RNA functions. Here, we develop a solid-state NMR-based water-RNA exchange spectroscopy (WaterREXSY) to characterize RNA in solid.
Sha Zhao   +10 more
doaj   +1 more source

High Base Pair Opening Rates in Tracts of GC Base Pairs [PDF]

open access: yesJournal of Biological Chemistry, 1999
Sequence-dependent structural features of the DNA double helix have a strong influence on the base pair opening dynamics. Here we report a detailed study of the kinetics of base pair breathing in tracts of GC base pairs in DNA duplexes derived from 1H NMR measurements of the imino proton exchange rates upon titration with the exchange catalyst ammonia.
U, Dornberger, M, Leijon, H, Fritzsche
openaire   +2 more sources

Dynamics of a bubble formed in double stranded DNA

open access: yes, 2008
We study the fluctuational dynamics of a tagged base-pair in double stranded DNA. We calculate the drift force which acts on the tagged base-pair using a potential model that describes interactions at base pairs level and use it to construct a Fokker ...
Kornberg A. Baker T. A.   +5 more
core   +1 more source

Pulling hairpinned polynucleotide chains: Does base-pair stacking interaction matter?

open access: yes, 2001
Force-induced structural transitions both in relatively random and in designed single-stranded DNA (ssDNA) chains are studied theoretically. At high salt conditions, ssDNA forms compacted hairpin patterns stabilized by base-pairing and base-pair stacking
Haijun Zhou, Moroz J. D., Yang Zhang
core   +1 more source

Multi-site H-bridge breathers in a DNA--shaped double strand [PDF]

open access: yes, 2003
We investigate the formation process of nonlinear vibrational modes representing broad H-bridge multi--site breathers in a DNA--shaped double strand. Within a network model of the double helix we take individual motions of the bases within the base ...
Alvarez A   +9 more
core   +2 more sources

Analysis of conventional and alternative CRISPR/Cas9 genome editing to enhance a single-base pair knock-in mutation

open access: yesBMC Biotechnology, 2021
Background The use of CRISPR/Cas9 technologies in generating single-base pair knock-in mutations has recently exploded in the number of methods available.
Carina Edmondson, Qi Zhou, Xuan Liu
doaj   +1 more source

Influence of a fluorobenzene nucleobase analogue on the conformational flexibility of RNA studied by molecular dynamics simulations [PDF]

open access: yes, 2006
Chemically modified bases are frequently used to stabilize nucleic acids, to study the driving forces for nucleic acid structure formation and to tune DNA and RNA hybridization conditions.
Engels, Joachim W. (Prof. Dr.)   +1 more
core  

Exploring Preferences for a Digital Single‐Session Intervention for Adolescent Siblings of Youth With Cancer

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Adolescent siblings of children with cancer are at elevated risk for psychosocial problems. Unfortunately, various barriers such as limited family time and resources, conflicting schedules, and psychosocial staffing constraints at cancer centers hinder sibling access to support.
Christina M. Amaro   +10 more
wiley   +1 more source

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