Results 101 to 110 of about 1,295,417 (401)

Detection rate for ESR1 mutations is higher in circulating‐tumor‐cell‐derived genomic DNA than in paired plasma cell‐free DNA samples as revealed by ddPCR

open access: yesMolecular Oncology, EarlyView.
Analysis of ESR1 mutations in plasma cell‐free DNA (cfDNA) is highly important for the selection of treatment in patients with breast cancer. Using multiplex‐ddPCR and identical blood draws, we investigated whether circulating tumor cells (CTCs) and cfDNA provide similar or complementary information for ESR1 mutations.
Stavroula Smilkou   +11 more
wiley   +1 more source

Pyrene-modified PNAs: Stacking interactions and selective excimer emission in PNA2DNA triplexes

open access: yesBeilstein Journal of Organic Chemistry, 2014
Pyrene derivatives can be incorporated into nucleic acid analogs in order to obtain switchable probes or supramolecular architectures. In this paper, peptide nucleic acids (PNAs) containing 1 to 3 1-pyreneacetic acid units (PNA1–6) with a sequence with ...
Alex Manicardi   +3 more
doaj   +1 more source

Nanosecond chain dynamics of single-stranded nucleic acids [PDF]

open access: yesarXiv, 2023
The conformational dynamics of single-stranded nucleic acids are fundamental for nucleic acid folding and function. However, their elementary chain dynamics have been difficult to resolve experimentally. Here we employ a combination of single-molecule F\"orster resonance energy transfer, nanosecond fluorescence correlation spectroscopy, fluorescence ...
arxiv  

Analysis of comprehensive genomic profiling of solid tumors with a novel assay for broad analysis in clinical diagnostics

open access: yesMolecular Oncology, EarlyView.
In molecular cancer diagnostics, comprehensive genomic profiling (CGP) is going to replace the small NGS panels since it provides all clinically relevant somatic variants as well as genomic biomarkers with clinical value. Here, we compared two CGP assays and demonstrate that the choice for diagnostic implementation will depend on the specific ...
Guy Froyen   +17 more
wiley   +1 more source

A CRISPR-based nucleic acid detection method for severe fever with thrombocytopenia syndrome virus

open access: yesVirus Research, 2022
Objective: Fever with thrombocytopenia syndrome virus (SFTS) is a tick-borne infection now known to spread among humans as an aerosol, which has resulted in several outbreaks across Asia over the past decade.
Yansong Zhang   +15 more
doaj  

By-product formation in repetitive PCR amplification of DNA libraries during SELEX. [PDF]

open access: yesPLoS ONE, 2014
The selection of nucleic acid aptamers is an increasingly important approach to generate specific ligands binding to virtually any molecule of choice. However, selection-inherent amplification procedures are prone to artificial by-product formation that ...
Fabian Tolle   +3 more
doaj   +1 more source

Flexibility of nucleic acids: from DNA to RNA [PDF]

open access: yesarXiv, 2015
The structural flexibility of nucleic acids plays a key role in many fundamental life processes, such as gene replication and expression, DNA-protein recognition, and gene regulation. To obtain a thorough understanding of nucleic acid flexibility, extensive studies have been performed using various experimental methods and theoretical models.
arxiv  

Solution of the Crow-Kimura and Eigen models for alphabets of arbitrary size by Schwinger spin coherent states [PDF]

open access: yes, 2009
To represent the evolution of nucleic acid and protein sequence, we express the parallel and Eigen models for molecular evolution in terms of a functional integral representation with an $h$-letter alphabet, lifting the two-state, purine/pyrimidine assumption often made in quasi-species theory. For arbitrary $h$ and a general mutation scheme, we obtain
arxiv   +1 more source

Method Utilizing the Tobacco Phylloplanin Promoter for Expression of Nucleic Acids as Gene Products Directed to Aerial Surfaces of Plants [PDF]

open access: yes, 2009
A method and system is provided for generating excreted gene products in a plant which includes generating a nucleic acid fusion construct comprising a phylloplanin promoter and a selected non-phylloplanin nucleic acid sequence whose transcription ...
Shepard, Ryan W., Wagner, George J.
core   +1 more source

Molecular and functional profiling unravels targetable vulnerabilities in colorectal cancer

open access: yesMolecular Oncology, EarlyView.
We used whole exome and RNA‐sequencing to profile divergent genomic and transcriptomic landscapes of microsatellite stable (MSS) and microsatellite instable (MSI) colorectal cancer. Alterations were classified using a computational score for integrative cancer variant annotation and prioritization.
Efstathios‐Iason Vlachavas   +15 more
wiley   +1 more source

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