Permeabilization of ultraviolet-irradiated chinese hamster cells with polyethylene glycol and introduction of ultraviolet endonuclease from Micrococcus luteus
Journal Article
·
· Mol. Cell. Biol.; (United States)
Chinese hamster V-79 cells were made permeable by treatment with polyethylene glycol and then incubated with a Micrococcus luteus extract containing ultraviolet-specific endonuclease activity. This treatment introduced nicks in irradiated, but not in unirradiated, deoxyribonucleic acid. The nicks remained open for at least 3 h; there was no loss of endonuclease-sensitive sites, and no excision of dimers as measured by chromatography was detected. In addition, there was no increase in ultraviolet resistance in treated cells. This suggests that the absence of a significant amount of excision repair in rodent cells is due to the lack of both incision and excision capacity.
- Research Organization:
- Brookhaven National Lab., Upton, NY
- OSTI ID:
- 5046684
- Journal Information:
- Mol. Cell. Biol.; (United States), Journal Name: Mol. Cell. Biol.; (United States) Vol. 1:3; ISSN MCEBD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
560121* -- Radiation Effects on Cells-- External Source-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALCOHOLS
ANIMAL CELLS
ANIMALS
BACTERIA
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
BIOLOGICAL RECOVERY
BIOLOGICAL REPAIR
CARBON 14 COMPOUNDS
CONNECTIVE TISSUE CELLS
DIMERS
DNA
ELECTROMAGNETIC RADIATION
ENZYMES
ESTERASES
EXTREME ULTRAVIOLET RADIATION
FIBROBLASTS
GLYCOLS
HAMSTERS
HYDROLASES
HYDROXY COMPOUNDS
LABELLED COMPOUNDS
MAMMALS
MICROCOCCUS
MICROCOCCUS LUTEUS
MICROORGANISMS
NUCLEASES
NUCLEIC ACIDS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PERMEABILITY
PHOSPHODIESTERASES
POLYETHYLENE GLYCOLS
POLYMERS
RADIATION EFFECTS
RADIATIONS
RADIOINDUCTION
RADIOSENSITIVITY EFFECTS
RECOVERY
REPAIR
RODENTS
SOMATIC CELLS
TRITIUM COMPOUNDS
ULTRAVIOLET RADIATION
VERTEBRATES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALCOHOLS
ANIMAL CELLS
ANIMALS
BACTERIA
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
BIOLOGICAL RECOVERY
BIOLOGICAL REPAIR
CARBON 14 COMPOUNDS
CONNECTIVE TISSUE CELLS
DIMERS
DNA
ELECTROMAGNETIC RADIATION
ENZYMES
ESTERASES
EXTREME ULTRAVIOLET RADIATION
FIBROBLASTS
GLYCOLS
HAMSTERS
HYDROLASES
HYDROXY COMPOUNDS
LABELLED COMPOUNDS
MAMMALS
MICROCOCCUS
MICROCOCCUS LUTEUS
MICROORGANISMS
NUCLEASES
NUCLEIC ACIDS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PERMEABILITY
PHOSPHODIESTERASES
POLYETHYLENE GLYCOLS
POLYMERS
RADIATION EFFECTS
RADIATIONS
RADIOINDUCTION
RADIOSENSITIVITY EFFECTS
RECOVERY
REPAIR
RODENTS
SOMATIC CELLS
TRITIUM COMPOUNDS
ULTRAVIOLET RADIATION
VERTEBRATES