Literature DB >> 29177733

DNA Supercoiling Measurement in Bacteria.

Yingting Liu1,2,3, Zhi-Chun Hua3,4, Fenfei Leng5,6.   

Abstract

DNA supercoiling plays critical roles in several essential DNA metabolic pathways, such as replication, transcription and recombination. Typically plasmid DNA molecules are used to measure DNA supercoiling status inside bacterial cells. In this chapter, we describe how to isolate plasmid DNA molecules from E. coli cells and determine DNA supercoiling density by 1% agarose gel electrophoresis containing chloroquine using plasmid pACYC184 as an example.

Entities:  

Keywords:  Agarose gel electrophoresis; DNA supercoiling; DNA topoisomers; Supercoiling density

Mesh:

Substances:

Year:  2018        PMID: 29177733      PMCID: PMC5995477          DOI: 10.1007/978-1-4939-7459-7_4

Source DB:  PubMed          Journal:  Methods Mol Biol        ISSN: 1064-3745


  6 in total

1.  DNA supercoiling in Escherichia coli is under tight and subtle homeostatic control, involving gene-expression and metabolic regulation of both topoisomerase I and DNA gyrase.

Authors:  Jacky L Snoep; Coen C van der Weijden; Heidi W Andersen; Hans V Westerhoff; Peter Ruhdal Jensen
Journal:  Eur J Biochem       Date:  2002-03

Review 2.  DNA topoisomerases: structure, function, and mechanism.

Authors:  J J Champoux
Journal:  Annu Rev Biochem       Date:  2001       Impact factor: 23.643

Review 3.  DNA topoisomerases.

Authors:  J C Wang
Journal:  Annu Rev Biochem       Date:  1996       Impact factor: 23.643

4.  Calculation of the twist and the writhe for representative models of DNA.

Authors:  J H White; W R Bauer
Journal:  J Mol Biol       Date:  1986-05-20       Impact factor: 5.469

5.  Helical repeat and linking number of surface-wrapped DNA.

Authors:  J H White; N R Cozzarelli; W R Bauer
Journal:  Science       Date:  1988-07-15       Impact factor: 47.728

6.  Roles of topoisomerases in maintaining steady-state DNA supercoiling in Escherichia coli.

Authors:  E L Zechiedrich; A B Khodursky; S Bachellier; R Schneider; D Chen; D M Lilley; N R Cozzarelli
Journal:  J Biol Chem       Date:  2000-03-17       Impact factor: 5.157

  6 in total
  2 in total

1.  A T5 Exonuclease-Based Assay for DNA Topoisomerases and DNA Intercalators.

Authors:  Zifang Deng; Fenfei Leng
Journal:  ACS Omega       Date:  2021-04-28

2.  Kinetic Study of DNA Topoisomerases by Supercoiling-Dependent Fluorescence Quenching.

Authors:  Yunke Wang; Samantha Rakela; Jeremy W Chambers; Zi-Chun Hua; Mark T Muller; John L Nitiss; Yuk-Ching Tse-Dinh; Fenfei Leng
Journal:  ACS Omega       Date:  2019-10-24
  2 in total

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