Results 21 to 30 of about 41,285 (266)

The effect of S-substitution at the O6-guanine site on the structure and dynamics of a DNA oligomer containing a G:T mismatch.

open access: yesPLoS ONE, 2017
The effect of S-substitution on the O6 guanine site of a 13-mer DNA duplex containing a G:T mismatch is studied using molecular dynamics. The structure, dynamic evolution and hydration of the S-substituted duplex are compared with those of a normal ...
Elaine Ann Moore, Yao-Zhong Xu
doaj   +1 more source

Recognition of Mismatched Base Pairs in DNA [PDF]

open access: yesBulletin of the Chemical Society of Japan, 2009
Abstract Mismatch binding ligand (MBL) selectively binds to mismatched base pairs with discrimination of the nucleotide bases composing the mismatch. This review focuses on the inside story regarding the molecular design of MBL and its function, and potential application in genomic science.
openaire   +1 more source

Detection of the C-C mismatched base pair by small ligands [PDF]

open access: yesNucleic Acids Symposium Series, 2003
We synthesized 2-aminonaphthyridine derivatives that specifically bind to cytosine-cytosine (C-C) mismatch. The binding of ligands was verified by observing an increase of melting temperature for 11-mer duplexes containing a mismatch in the presence of ligands.
Akio, Kobori   +3 more
openaire   +2 more sources

Characteristic mutations induced in the small intestine of Msh2-knockout gpt delta mice

open access: yesGenes and Environment, 2021
Background Base pair mismatches in genomic DNA can result in mutagenesis, and consequently in tumorigenesis. To investigate how mismatch repair deficiency increases mutagenicity under oxidative stress, we examined the type and frequency of mutations ...
Yasunobu Aoki   +6 more
doaj   +1 more source

Imidazole-imidazole pair as a minor groove recognition motif for T:G mismatched base pairs [PDF]

open access: yesNucleic Acids Research, 1999
The T:G mismatched base pair is associated with many genetic mutations. Understanding its biological consequences may be aided by studying the structural perturbation of DNA caused by a T:G base pair and by specific probing of the mismatch using small molecular ligands.
X L, Yang   +5 more
openaire   +2 more sources

Detección de mutaciones de los genes hMLH1 y hMSH2 del sistema de reparación de malos apareamientos del ADN en familias colombianas sospechosas de cancer colorrectal no polipósico hereditario (síndrome de Lynch).

open access: yesBiomédica: revista del Instituto Nacional de Salud, 2005
Introducción. El cáncer colorrectal es la segunda causa de morbilidad y mortalidad por cáncer en los países desarrollados. En Colombia es la quinta causa de muerte entre los diferentes cánceres.
Andrea Gómez   +11 more
doaj   +1 more source

Selective Preference of Parallel DNA Triplexes Is Due to the Disruption of Hoogsteen Hydrogen Bonds Caused by the Severe Nonisostericity between the G*GC and T*AT Triplets. [PDF]

open access: yesPLoS ONE, 2016
Implications of DNA, RNA and RNA.DNA hybrid triplexes in diverse biological functions, diseases and therapeutic applications call for a thorough understanding of their structure-function relationships. Despite exhaustive studies mechanistic rationale for
Gunaseelan Goldsmith   +2 more
doaj   +1 more source

Free energy landscape of RNA binding dynamics in start codon recognition by eukaryotic ribosomal pre-initiation complex.

open access: yesPLoS Computational Biology, 2021
Specific interaction between the start codon, 5'-AUG-3', and the anticodon, 5'-CAU-3', ensures accurate initiation of translation. Recent studies show that several near-cognate start codons (e.g.
Takeru Kameda   +2 more
doaj   +1 more source

Longitudinal circulating tumor DNA profiling in patients with advanced endometrial cancer using an off‐the‐shelf targeted NGS panel

open access: yesMolecular Oncology, EarlyView.
Intratumour heterogeneity complicates precision management of advanced endometrial cancer. Circulating tumor DNA (ctDNA) offers a minimally invasive strategy to capture tumor evolution and therapeutic resistance. Here, we compare tumor‐agnostic NGS with tumor‐informed ddPCR, outlining their relative sensitivity, concordance, and clinical implications ...
Carlos Casas‐Arozamena   +15 more
wiley   +1 more source

Interpreting the effects of DNA polymerase variants at the structural level

open access: yesMolecular Oncology, EarlyView.
Using MAVISp and molecular dynamics simulations, we analyzed over 60 000 missense variants in POLE and POLD1 from ClinVar, COSMIC, cBioPortal, and saturation mutagenesis. Identified mechanistic indicators, including stability, binding, and long‐range, enable structural interpretation, providing ACMG‐like evidence for possible reclassification of VUS ...
Matteo Arnaudi   +7 more
wiley   +1 more source

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