Yeast plasmids have fewer superhelical turns than predicted by the nucleosome repeat of yeast DNA.
Biochem Cell Biol
; 69(2-3): 170-7, 1991.
Article
en En
| MEDLINE
| ID: mdl-2031717
ABSTRACT
The superhelical density of three Saccharomyces cerevisiae plasmids was determined with respect to a defined reference state during vegetative growth and stationary phase. The levels of supercoiling determined were approximately 20% lower than predicted by comparisons with SV40 DNA and reconstituted minichromosomes using histones from higher eukaryotes. In two different plasmids with the ARS1 origin of replication, the level of supercoiling changed substantially as the host cells entered stationary phase. Supercoiling of the endogenous 2-microns plasmid during vegetative growth was lower than in the ARS1-containing plasmids but did not change significantly upon entry of the cells into stationary phase.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Plásmidos
/
Saccharomyces cerevisiae
/
ADN de Hongos
/
ADN Superhelicoidal
/
Cromatina
Tipo de estudio:
Prognostic_studies
/
Risk_factors_studies
Idioma:
En
Revista:
Biochem Cell Biol
Asunto de la revista:
BIOQUIMICA
Año:
1991
Tipo del documento:
Article
País de afiliación:
Canadá
Pais de publicación:
CA
/
CANADA
/
CANADÁ