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DNA structures

Triplex and quadruplex DNA structures studied by electrospray mass spectrometry

Triplex and quadruplex DNA structures studied by electrospray mass spectrometry

... various DNA targets including double- stranded DNA, but also G-quadruplexes and triple helices 21-23 ...two structures are formed by hydrogen bonding interactions different from those in the ...

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Specific Stabilization of c-MYC and c-KIT G-Quadruplex DNA Structures by Indolylmethyleneindanone Scaffolds

Specific Stabilization of c-MYC and c-KIT G-Quadruplex DNA Structures by Indolylmethyleneindanone Scaffolds

... values (∆T 1/2 ~ 2.6-12.4 °C, Table 1) were observed after the addition of ligands (Figure S6, Supporting Information). CD melting experiments revealed that irrespective of the length and the number of side chains, the ...

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Targeting G-rich DNA Structures with Photo-Reactive bis-Cyclometalated Iridium(III) Complexes

Targeting G-rich DNA Structures with Photo-Reactive bis-Cyclometalated Iridium(III) Complexes

... 13 3 towards G-quadruplex DNA is significantly higher than that of complex 4 (Table 3 and see Figure S24). This is in agreement with the melting temperature (Tm) study (vide supra). However, a weak selectivity ...

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UV Spectroscopy of DNA Duplex and Quadruplex Structures in the Gas Phase

UV Spectroscopy of DNA Duplex and Quadruplex Structures in the Gas Phase

... large DNA structures (200 atoms and more) also reveal a red-shift upon double helix and G- quadruplex structures ...acids structures in the gas phase, produced by electrospray mass ...

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Harnessing intrinsic fluorescence for typing of secondary structures of DNA

Harnessing intrinsic fluorescence for typing of secondary structures of DNA

... high-resolution structures, these techniques need either a well-defined spectrum with single species (for NMR) or a well-diffracting crystal (for crystallography), which are not always ...higher-order ...

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DNA replication stress triggers rapid DNA replication fork breakage by Artemis and XPF

DNA replication stress triggers rapid DNA replication fork breakage by Artemis and XPF

... unusual DNA structures such as hairpins or cruciform structures at repeated sequences, R-loops at transcription sites or regressed ...from DNA replication stress are located within DNA ...

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Physicochemical study of DNA biochips: DNA duplex stability, point mutation detection and beyond

Physicochemical study of DNA biochips: DNA duplex stability, point mutation detection and beyond

... 4.7. SUMMARY: REAL-TIME CHARACTERIZATION OF ODN CHIPS Otherwise, signals are likely to present drifts. Other stringent conditions like negative potentials applied to the sensor surface have not been treated here, but ...

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Structures sociales et structures génétiques dans les populations humaines

Structures sociales et structures génétiques dans les populations humaines

... Reçu le 3 février 2020 ; accepté le 18 février 2020 Résumé Dans cette note, nous revenons sur les grandes lignes de la conférence donnée lors des journées de la SAP 2019 concernant le champ actuel de l ’ethnogénétique, ...

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C-terminal region of bacterial Ku controls DNA bridging, DNA threading and recruitment of DNA ligase D for double strand breaks repair.

C-terminal region of bacterial Ku controls DNA bridging, DNA threading and recruitment of DNA ligase D for double strand breaks repair.

... the DNA ligase components as well as other accessory NHEJ ...(ds) DNA molecule ( 21 ...the DNA molecule when additional Ku proteins enter by the ends ( 22 , 23 , 24 ...the DNA ends the other ...

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RNA-directed DNA methylation

RNA-directed DNA methylation

... transcribed transgenes can provoke DNA methylation. But RdDM can also affect endogenous genes expressed at lower levels. For example, the PAI tryptophan-biosynthesis genes in Arabidopsis are methylated at CG and ...

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Chemical biology of mutagenesis and DNA repair: cellular responses to DNA alkylation

Chemical biology of mutagenesis and DNA repair: cellular responses to DNA alkylation

... mutagenic DNA lesion such as those described in this ...enzymatic DNA-targeted base deamination systems that cause a high density of mutations within a genome ...

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Casting inorganic structures with DNA molds

Casting inorganic structures with DNA molds

... a DNA nanostructure surface has produced diverse 2D ...the DNA skeletons (56) are often observed for these unconfined metalized ...using DNA nanostructures to spatially confine the growth of the ...

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Sur certaines structures complémentaires de structures connues

Sur certaines structures complémentaires de structures connues

... les structures complémentaires susceptibles d’être associées à certains ordres, pré- ordres ou ordres partiels, via leurs graphes ...des structures qui n’apparaissent généralement qu’en blanc ou en creux et ...

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Fluorescence of DNA Duplexes: From Model Helices to Natural DNA

Fluorescence of DNA Duplexes: From Model Helices to Natural DNA

... motions of a given duplex will affect the relaxation of its excited states and, consequently, its fluorescence properties. The corollary is that any factor having an impact on the conformational motions of the duplex ...

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DNA polymerases in adaptive immunity.: DNA polymerases in adaptive immunity

DNA polymerases in adaptive immunity.: DNA polymerases in adaptive immunity

... the DNA is cleaved by a process involving the two RAG ...the DNA known as recombination signal sequences (RSSs) that flank each coding segment (V, D and J segments) and introduces a nick into one strand of ...

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La nature : structures fondamentales et structures évoluées

La nature : structures fondamentales et structures évoluées

... Ces premieres entrevues tn 'ont pertnis de mieux cemer la demande. Elle a egalement eu le merite de pemiettre d Monsieur Goulesque de bien definir lui-meme ce qu'il desirait[r] ...

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DNA barcoding grey mullets

DNA barcoding grey mullets

... Abstract Despite the ecological and commercial importance of grey mullets (fish family Mugilidae), their taxonomy and systematics are still much debated. Reasons for this are the low level of morphometric variability ...

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DNA studies using atomic force microscopy: capabilities for measurement of short DNA fragments

DNA studies using atomic force microscopy: capabilities for measurement of short DNA fragments

... Short DNA fragments, resulting from ionizing radiation induced DNA double strand breaks (DSBs), or released from cells as a result of physiological processes and circulating in the blood stream, may play ...

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DNA Replication Restart in Archaea

DNA Replication Restart in Archaea

... organism suggested that one active ori-cdc6 pairing on each replicon was essential for genome replication in H. hispanica [23]. But recent data obtained in the halophilic archaea Haloferax volcanii challenged the notion ...

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DNA Labeling at Electron Microscopy

DNA Labeling at Electron Microscopy

... studying DNA distribution at the subcellular level [1, 2], including the Feulgen-like reaction with osmium ammine [3–6] and tagging DNA with DNase–gold complexes [7, ...against DNA [9–12] or against ...

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