Plasmid pGS5 from the Hyperthermophilic Archaeon Archaeoglobus profundus Is Negatively Supercoiled-Reference-Cited by-同舟云学术

Plasmid pGS5 from the Hyperthermophilic Archaeon Archaeoglobus profundus Is Negatively Supercoiled

Published:2000-09 Issue:17 Volume:182 Page:4998-5000
ISSN:0021-9193
Container-title:Journal of Bacteriology
language:en
Short-container-title:J Bacteriol

Author:

López-García Purificación¹²,Forterre Patrick¹,van der Oost John³,Erauso Gaël¹⁴³

Affiliation:

1. Institut de Génétique et Microbiologie, Université Paris-Sud, 91405 Orsay Cedex,1 and

2. División de Microbiologı́a, Universidad Miguel Hernández, 03550 San Juan de Alicante Spain2; and

3. Laboratory of Microbiology, Department of Biomolecular Sciences, Wageningen University, NL-6703 CT Wageningen, The Netherlands3

4. Institut Universitaire Européen de la Mer, Université de Bretagne Occidental, 29280 Plouzané,4 France;

Abstract

ABSTRACT We present evidence that, in contrast to plasmids from other hyperthermophilic archaea, which are in the relaxed to positively supercoiled state, plasmid pGS5 (2.8 kb) from Archaeoglobus profundus is negatively supercoiled. This might be due to the presence of a gyrase introducing negative supercoils, since gyrase genes are present in the genome of its close relative A. fulgidus , and suggests that gyrase activity predominates over reverse gyrase whenever the two topoisomerases coexist in cells.

Publisher

American Society for Microbiology

Subject

Molecular Biology,Microbiology

Link

https://journals.asm.org/doi/pdf/10.1128/JB.182.17.4998-5000.2000

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