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Literature DB >> 172901

Conformational fluctuations of DNA helix.

Abstract

Treatment of a homogeneous sample of circular DNA molecules that contain at least one single-strand scission per molecule with ligase yields a population of covalently closed circles heterogeneous in the topological winding number alpha. Under proper conditions, the product molecules with different values of alpha can all be resolved by gel electrophoresis. The distributions in alpha for several DNAs, covalently closed at different temperatures, have been determined and the results have been interpreted in terms of thermal fluctuations of the DNA helix.

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Year: 1975 PMID： 172901 PMCID： PMC388703 DOI： 10.1073/pnas.72.11.4275

Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN： 0027-8424 Impact factor: 11.205

15 in total

1. Studies on the cleavage of bacteriophage lambda DNA with EcoRI Restriction endonuclease.

Authors: M Thomas; R W Davis
Journal: J Mol Biol Date: 1975-01-25 Impact factor: 5.469

2. On the degree of unwinding of the DNA helix by ethidium. II. Studies by electron microscopy.

Authors: L F Liu; J C Wang
Journal: Biochim Biophys Acta Date: 1975-07-23

3. Ligation of EcoRI endonuclease-generated DNA fragments into linear and circular structures.

Authors: A Dugaiczyk; H W Boyer; H M Goodman
Journal: J Mol Biol Date: 1975-07-25 Impact factor: 5.469

4. Interaction of closed circular DNA with intercalative dyes. II. The free energy of superhelix formation in SV40 DNA.

Authors: W Bauer; J Vinograd
Journal: J Mol Biol Date: 1970-02-14 Impact factor: 5.469

5. The degree of unwinding of the DNA helix by ethidium. I. Titration of twisted PM2 DNA molecules in alkaline cesium chloride density gradients.

Authors: J C Wang
Journal: J Mol Biol Date: 1974-11-15 Impact factor: 5.469

6. Interactions between twisted DNAs and enzymes: the effects of superhelical turns.

Authors: J C Wang
Journal: J Mol Biol Date: 1974-08-25 Impact factor: 5.469

7. A minute circular DNA from Escherichia coli 15.

Authors: N R Cozzarelli; R B Kelly; A Kornberg
Journal: Proc Natl Acad Sci U S A Date: 1968-07 Impact factor: 11.205

8. Analysis of bacteriophage T7 early RNAs and proteins on slab gels.

Authors: F W Studier
Journal: J Mol Biol Date: 1973-09-15 Impact factor: 5.469

9. Thermodynamic properties of superhelical DNAs.

Authors: T S Hsieh; J C Wang
Journal: Biochemistry Date: 1975-02-11 Impact factor: 3.162

10. Mechanism of DNA replication in Drosophila chromosomes: structure of replication forks and evidence for bidirectionality.

Authors: H J Kriegstein; D S Hogness
Journal: Proc Natl Acad Sci U S A Date: 1974-01 Impact factor: 11.205

182 in total

1. Stability of a human SWI-SNF remodeled nucleosomal array.

Authors: J R Guyon; G J Narlikar; E K Sullivan; R E Kingston
Journal: Mol Cell Biol Date: 2001-02 Impact factor: 4.272

2. Remodeling of yeast CUP1 chromatin involves activator-dependent repositioning of nucleosomes over the entire gene and flanking sequences.

Authors: C H Shen; B P Leblanc; J A Alfieri; D J Clark
Journal: Mol Cell Biol Date: 2001-01 Impact factor: 4.272

Conformational fluctuations of DNA helix.

1. Studies on the cleavage of bacteriophage lambda DNA with EcoRI Restriction endonuclease.

2. On the degree of unwinding of the DNA helix by ethidium. II. Studies by electron microscopy.

3. Ligation of EcoRI endonuclease-generated DNA fragments into linear and circular structures.

4. Interaction of closed circular DNA with intercalative dyes. II. The free energy of superhelix formation in SV40 DNA.

5. The degree of unwinding of the DNA helix by ethidium. I. Titration of twisted PM2 DNA molecules in alkaline cesium chloride density gradients.

6. Interactions between twisted DNAs and enzymes: the effects of superhelical turns.

7. A minute circular DNA from Escherichia coli 15.

8. Analysis of bacteriophage T7 early RNAs and proteins on slab gels.

9. Thermodynamic properties of superhelical DNAs.

10. Mechanism of DNA replication in Drosophila chromosomes: structure of replication forks and evidence for bidirectionality.

1. Stability of a human SWI-SNF remodeled nucleosomal array.

2. Remodeling of yeast CUP1 chromatin involves activator-dependent repositioning of nucleosomes over the entire gene and flanking sequences.

3. Conformational transition in DNA on a cold surface.

4. DNA rings with multiple energy minima.

5. Electrostatic-undulatory theory of plectonemically supercoiled DNA.

6. Plasmid pGS5 from the hyperthermophilic archaeon Archaeoglobus profundus is negatively supercoiled.

7. Early melting of supercoiled DNA topoisomers observed by TGGE.

8. Equilibrium distributions of topological states in circular DNA: interplay of supercoiling and knotting.

9. DNA relaxation by human topoisomerase I occurs in the closed clamp conformation of the protein.

10. Thermal unwinding of simian virus 40 transcription complex DNA.