Results 41 to 50 of about 2,374,595 (203)

Gut Microbiota and Metabolome Dynamics Along Gastric Cancer Progression: An Exploratory Multi-Omics Analysis

open access: yesFrontiers in Bioscience-Landmark
Background: Gastric cancer (GC) remains a major global health burden, particularly in East Asia, with complex etiologies involving Helicobacter pylori infection, diet, host genetics, and environmental exposures.
Jingfang Yang   +7 more
doaj   +1 more source

Structure, stability and elasticity of DNA nanotube

open access: yes, 2014
DNA nanotubes are tubular structures composed of DNA crossover molecules. We present a bottom up approach for construction and characterization of these structures. Various possible topologies of nanotubes are constructed such as 6-helix, 8-helix and tri-
Dwaraknath, Anjan   +2 more
core   +1 more source

Testing robustness of relative complexity measure method constructing robust phylogenetic trees for Galanthus L. Using the relative complexity measure [PDF]

open access: yes, 2013
Background: Most phylogeny analysis methods based on molecular sequences use multiple alignment where the quality of the alignment, which is dependent on the alignment parameters, determines the accuracy of the resulting trees.
Bakis, Yasin   +11 more
core   +2 more sources

The mutational repertoire of uterine sarcomas and carcinosarcomas in a Brazilian cohort: A preliminary study [PDF]

open access: yesClinics
OBJECTIVES: The present study aimed to contribute to the catalog of genetic mutations involved in the carcinogenic processes of uterine sarcomas (USs) and carcinosarcomas (UCSs), which may assist in the accurate diagnosis of, and selection of treatment ...
Leonardo Tomiatti da Costa   +7 more
doaj   +2 more sources

Structural analysis of DNA binding by C.Csp231I, a member of a novel class of R-M controller proteins regulating gene expression [PDF]

open access: yes, 2015
In a wide variety of bacterial restriction–modification systems, a regulatory `controller' protein (or C-protein) is required for effective transcription of its own gene and for transcription of the endonuclease gene found on the same operon.
Kneale, G. G.   +5 more
core   +2 more sources

Seven-Cluster Structure of Larch Chloroplast Genome [PDF]

open access: yesЖурнал Сибирского федерального университета: Серия Биология, 2015
The paper presents a novel approach to study a nucleotide sequence structure with respect to the chloroplast genome DNA sequence analysis. A specific frequencies distribution pattern of the consecutive triple nucleotide fragments was identified in the ...
Michael G. Sadovsky   +5 more
doaj   +1 more source

Sequencing and Analysis of Neanderthal Genomic DNA [PDF]

open access: yesScience, 2006
Our knowledge of Neanderthals is based on a limited number of remains and artifacts from which we must make inferences about their biology, behavior, and relationship to ourselves. Here, we describe the characterization of these extinct hominids from a new perspective, based on the development of a Neanderthal metagenomic library ...
Noonan, James P.   +10 more
openaire   +5 more sources

Understanding the sequence-dependence of DNA groove dimensions: implications for DNA interactions. [PDF]

open access: yesPLoS ONE, 2010
BACKGROUND: The B-DNA major and minor groove dimensions are crucial for DNA-protein interactions. It has long been thought that the groove dimensions depend on the DNA sequence, however this relationship has remained elusive.
Christophe Oguey   +2 more
doaj   +1 more source

A sequence-based 163plex microhaplotype assay for forensic DNA analysis

open access: yesFrontiers in Genetics, 2022
Novel genetic marker microhaplotype has led to an upsurge in forensic genetic research. This study established a 163 microhaplotype (MH) multiplex assay based on next-generation sequencing (NGS) and evaluated the assay’s performance and applicability ...
Ruiyang Tao   +6 more
doaj   +1 more source

Characterization of DNA methylation as a function of biological complexity via dinucleotide inter-distances

open access: yes, 2015
We perform a statistical study of the distances between successive occurrencies of a given dinucleotide in the DNA sequence for a number of organisms of different complexity.
Castellani, Gastone C.   +6 more
core   +1 more source

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