Results 251 to 260 of about 2,877,234 (303)
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DNA circular dichroism in gas phase
, 2020Spectroscopy Circular dichroism spectroscopy is widely used to distinguish between nonidentical mirror-image molecules. The technique relies on differential absorption of left versus right circularly polarized light and therefore tends to require ...
J. Yeston
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Physical Review E, 2007
We investigate the orbital magnetization of DNA molecules in the relaxed circular structure. It is shown that DNA of homogeneous sequence exhibits paramagnetic responses to external magnetic fields and, surprisingly, the magnetism of circular DNA is equivalent to that of linear DNA. This turns out to result from the fact that the electron population is
Seongjin, Kim, Juyeon, Yi, M Y, Choi
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We investigate the orbital magnetization of DNA molecules in the relaxed circular structure. It is shown that DNA of homogeneous sequence exhibits paramagnetic responses to external magnetic fields and, surprisingly, the magnetism of circular DNA is equivalent to that of linear DNA. This turns out to result from the fact that the electron population is
Seongjin, Kim, Juyeon, Yi, M Y, Choi
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Circular, repetitive DNA in yeast
Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1972Abstract The fraction of repetitive DNA and the small circular DNA with nuclear density from Saccharomyces cerevisiae are shown to be identical.
Bak, AL +2 more
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In Vitro Selection of Circular DNA Aptamers for Biosensing Applications.
Angewandte Chemie, 2019We report on the first effort to select DNA aptamers from a circular DNA library, which resulted in the discovery of two high-affinity circular DNA aptamers that recognize the glutamate dehydrogenase (GDH) from Clostridium difficile, an established ...
Meng Liu +5 more
semanticscholar +1 more source
2001
Circular splicing has been very recently introduced to model a specific recombinant behaviour of circular DNA, carrying on the investigation initiated with linear splicing. In this paper we restrict ourselves to the relationship between circular regular languages and circular splicing languages.
P. BONIZZONI +3 more
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Circular splicing has been very recently introduced to model a specific recombinant behaviour of circular DNA, carrying on the investigation initiated with linear splicing. In this paper we restrict ourselves to the relationship between circular regular languages and circular splicing languages.
P. BONIZZONI +3 more
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Circular dichroism of superhelical DNA
Biopolymers, 1971AbstractThe circular dichroism (CD) spectra of a number of superhelical DNA's have been measured. The introduction of negative superhelical turns causes an increase in magnitude of the positive band around 280 mμ, while the trough around 250mμ is little affected.
M F, Maestre, J C, Wang
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Covalently closed circular DNA
Journal of hepatology, 2021Current antiviral therapies, such as pegylated interferon-α and nucleos(t)ide analogues, effectively improve the quality of life of patients with chronic hepatitis B. However, they can only control the infection rather than curing infected hepatocytes.
Martinez, Maria Guadalupe +4 more
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Searching circular DNA strands
Journal of Physics: Condensed Matter, 2007We introduce and explore a model of an ensemble of enzymes searching, in parallel, a circular DNA strand for a target site. The enzymes performing the search combine local scanning—conducted by a 1D motion along the strand—and random relocations on the strand—conducted via a confined motion in the medium containing the strand.
Iddo Eliazar, Tal Koren, Joseph Klafter
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Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1981
Summary Closed duplex (cd) and open circular (oc) forms of DNA of the plasmid Col E1 were studied by means of a.c. and differential pulse polarography (d.p.p.). Adsorption properties of oc DNA (at pH 8) agreed in principle with those of linear DNAs. cd DNA was less firmly adsorbed at the d.m.e. compared with oc DNA.
M. Vojtíšková +3 more
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Summary Closed duplex (cd) and open circular (oc) forms of DNA of the plasmid Col E1 were studied by means of a.c. and differential pulse polarography (d.p.p.). Adsorption properties of oc DNA (at pH 8) agreed in principle with those of linear DNAs. cd DNA was less firmly adsorbed at the d.m.e. compared with oc DNA.
M. Vojtíšková +3 more
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Conformation and circular dichroism of DNA
Biopolymers, 1979AbstractCD spectra of calf thymus, C. perfringens, E. coli, and M. luteus DNA have been measured in the vacuum‐uv region to about 168 nm for the A‐, B‐, and C‐forms. The positive band at about 187 nm and the negative band at about 170 nm found for each type and form of DNA are sensitive to the source of the DNA and the base–base interactions of the ...
C A, Sprecher, W A, Baase, W C, Johnson
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