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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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2016
In this chapter the statistical-mechanical and transport theories of the HW chain developed so far are applied to some interesting problems of circular DNA such as cyclization of linear DNA and analysis of circular DNA topoisomers (topological isomers) or supercoiled forms.
Hiromi Yamakawa, Takenao Yoshizaki
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In this chapter the statistical-mechanical and transport theories of the HW chain developed so far are applied to some interesting problems of circular DNA such as cyclization of linear DNA and analysis of circular DNA topoisomers (topological isomers) or supercoiled forms.
Hiromi Yamakawa, Takenao Yoshizaki
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Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1966
E F, van Bruggen +4 more
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E F, van Bruggen +4 more
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Large bubble drives circular DNA melting
Physical Chemistry Chemical PhysicsThe melting of non-supercoiled circular DNA is primarily facilitated by a large bubble.
Souradeep Sengupta +2 more
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