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Proc Natl Acad Sci U S A
1969 Mar 01;623:813-20. doi: 10.1073/pnas.62.3.813.
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The use of an ethidium analogue in the dye-buoyant density procedure for the isolation of closed circular DNA: the variation of the superhelix density of mitochondrial DNA.
Hudson B
,
Upholt WB
,
Devinny J
,
Vinograd J
.
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The separation between open and closed circular DNA in buoyant CsCl gradients containing intercalating dyes depends on the superhelix density of the closed form. These separations are about 1.8 times larger with propidium iodide than with ethidium bromide. The superhelix densities of mitochondrial DNA from HeLa cells and Lytechinus pictus eggs appear to be about two thirds that of mitochondrial DNA from rat and rabbit liver.
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The interaction of closed circular DNA with intercalative dyes. I. The superhelix density of SV40 DNA in the presence and absence of dye.
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The interaction of closed circular DNA with intercalative dyes. I. The superhelix density of SV40 DNA in the presence and absence of dye.
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A minute circular DNA from Escherichia coli 15.
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Supercoiling of polyoma virus DNA measured by its interaction with ethidium bromide.
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The supercoiling of papilloma virus DNA.
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The enzymatic repair of DNA. I. Formation of circular lambda-DNA.
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LePecq,
A fluorescent complex between ethidium bromide and nucleic acids. Physical-chemical characterization.
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Little,
Enzymatic joining of DNA strands, II. An enzyme-adenylate intermediate in the dpn-dependent DNA ligase reaction.
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Olivera,
Linkage of polynucleotides through phosphodiester bonds by an enzyme from Escherichia coli.
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Pikó,
Cytoplasmic DNA in the unfertilized sea urchin egg: physical properties of circular mitochondrial DNA and the occurrence of catenated forms.
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Radloff,
A dye-buoyant-density method for the detection and isolation of closed circular duplex DNA: the closed circular DNA in HeLa cells.
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Ruttenberg,
The number of superhelical turns in mitochondrial DNA.
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Vinograd,
Early and late helix-coil transitions in closed circular DNA. The number of superhelical turns in polyoma DNA.
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Vinograd,
Physical and topological properties of circular DNA.
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Wang,
On the origin of tertiary turns in covalently closed double-stranded cyclic DNA.
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Zimmerman,
Enzymatic joining of DNA strands: a novel reaction of diphosphopyridine nucleotide.
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