Cloning, Sequencing, and Characterization of the recA Gene from 
Rhodopseudomonas viridis and Construction of a recA Strain

Chen, I-Peng; Michel, Hartmut

doi:10.1128/JB

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Cloning, Sequencing, and Characterization of the recA Gene from Rhodopseudomonas viridis and Construction of a recA Strain

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Chen, I-Peng
Department of Molecular Membrane Biology, Max Planck Institute of Biophysics, Max Planck Society;

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Michel, Hartmut
Department of Molecular Membrane Biology, Max Planck Institute of Biophysics, Max Planck Society;

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引用

Chen, I.-P., & Michel, H. (1998). Cloning, Sequencing, and Characterization of the recA Gene from Rhodopseudomonas viridis and Construction of a recA Strain. Journal of Bacteriology, 180(12), 3227 -3232. doi:10.1128/JB.

引用: https://hdl.handle.net/21.11116/0000-0007-07F6-C

要旨

A recombination-deficient strain of the phototrophic bacterium Rhodopseudomonas viridis was constructed for the homologous expression of modified photosynthetic reaction center genes. The R. viridis recA gene was cloned and subsequently deleted from the R. viridis genome. The cloned R. viridis recA gene shows high identity to known recA genes and was able to complement the Rec⁻ phenotype of a Rhizobium meliloti recA strain. The constructed R. viridis recA strain showed the general Rec⁻ phenotype, i.e., increased sensitivity to DNA damage and severely impaired recombination ability. The latter property of this strain will be of advantage in particular for expression of modified, nonfunctional photosynthetic reaction centers which are not as yet available.