Abstract
A method is described for the isolation of Escherichia coli mutants that show increased recombination between a pair of chromosomal duplications. These "hyper-rec" mutants display a variety of secondary phenotypes. I have isolated a large number of hyper-rec mutants and found them useful in screening for mutants that accumulate labeled DNA fragments after short pulses with [3H]thymidine. The mutants so recovered include ones that are defective in deoxyribonucleic acid ligase, deoxyribonucleic acid polymerase I and its associated 5' yields 3' exonuclease, and a group of mutants, dnaS, that accumulate abnormally short Okazaki fragments. Evidence is presented that suggests that the lac-att80 segment of the chromosome cannot be inverted.
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Dates
Type | When |
---|---|
Created | 5 years, 8 months ago (Jan. 3, 2020, 11:14 a.m.) |
Deposited | 4 years, 1 month ago (July 29, 2021, 1:24 p.m.) |
Indexed | 1 year, 7 months ago (Jan. 18, 2024, 12:26 a.m.) |
Issued | 48 years, 5 months ago (April 1, 1977) |
Published | 48 years, 5 months ago (April 1, 1977) |
Published Print | 48 years, 5 months ago (April 1, 1977) |
@article{Konrad_1977, title={Method for the isolation of Escherichia coli mutants with enhanced recombination between chromosomal duplications}, volume={130}, ISSN={1098-5530}, url={http://dx.doi.org/10.1128/jb.130.1.167-172.1977}, DOI={10.1128/jb.130.1.167-172.1977}, number={1}, journal={Journal of Bacteriology}, publisher={American Society for Microbiology}, author={Konrad, E B}, year={1977}, month=apr, pages={167–172} }