Excision of Thymine Dimers in Vitro by Extracts of Bacteriophage-infected Escherichia Coli

Overview

Journal J Virol

Publisher American Society for Microbiology

Date 1974 May 1

PMID 4596298

Citations 6

Authors

E C Friedberg

K Minton

G Pawl

P Verzola

Affiliations

Soon will be listed here.

Abstract

Extracts of DNA polymerase I defective Escherichia coli infected with phage T4 contain an exonuclease activity that removes thymine dimers from UV-irradiated DNA previously nicked with T4 UV endonuclease. This activity is not expressed if cells are infected in the presence of chloramphenicol. The enzyme has a requirement for divalent cation and is not affected by caffeine, but excision is inhibited in the presence of proflavine. The enzyme is present in all phage T4 mutants thus far examined, including 25 UV-sensitive mutants isolated during the course of the experiments, all of which are defective in the v gene. A similar activity can be detected in cells infected with phages T2, T3, and T6, but not in cells infected with phage T7.

Citing Articles

Molecular mechanisms of pyrimidine dimer excision in Saccharomyces cerevisiae: excision of dimers in cell extracts.

Reynolds R, Love J, Friedberg E J Bacteriol. 1981; 147(2):705-8.

PMID: 7021538 PMC: 216098. DOI: 10.1128/jb.147.2.705-708.1981.

Deoxyribonucleic acid repair in bacteriophage.

Bernstein C Microbiol Rev. 1981; 45(1):72-98.

PMID: 6261109 PMC: 281499. DOI: 10.1128/mr.45.1.72-98.1981.

The genome of bacteriophage T4.

Wood W, Revel H Bacteriol Rev. 1976; 40(4):847-68.

PMID: 795415 PMC: 413987. DOI: 10.1128/br.40.4.847-868.1976.

Shutoff of host macromolecular synthesis after T-even bacteriophage infection.

Koerner J, Snustad D Microbiol Rev. 1979; 43(2):199-223.

PMID: 390354 PMC: 281471. DOI: 10.1128/mr.43.2.199-223.1979.

Deoxyribonucleic acid repair in vitro by extracts of Escherichia coli.

Masker W J Bacteriol. 1977; 129(3):1415-23.

PMID: 321426 PMC: 235117. DOI: 10.1128/jb.129.3.1415-1423.1977.

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