Abstract
F42 lac recombination with λplac5is normally twentyfold to fiftyfold higher than recombination between λplac5 and a chromosomal lac gene. The presence of an fi+ R1 plasmid in the same cells as F42 lac dramatically reduces this enhanced recombination level while the fi- R1 drd19 plasmid has little effect. When F42 lac traJ90 is tested in a sup+ strain, it shows a sharp reduction in recombination with λplac5 that can be largely reversed by the presence of a supF mutation that partially suppresses the traJ90 nonsense mutation. It is concluded that the enhanced recombination between F42 lac and λplac5 is largely dependent on the constitutive expression of F42 lac fertility functions.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 355-358 |
| Number of pages | 4 |
| Journal | MGG Molecular & General Genetics |
| Volume | 184 |
| Issue number | 3 |
| DOIs | |
| State | Published - Dec 1 1981 |
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All Science Journal Classification (ASJC) codes
- Genetics
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Enhanced recombination between F42 lac and λplac5 : Dependence on F42 lac fertility functions. / Porter, Ronald D.
In: MGG Molecular & General Genetics, Vol. 184, No. 3, 01.12.1981, p. 355-358.Research output: Contribution to journal › Article
TY - JOUR
T1 - Enhanced recombination between F42 lac and λplac5
T2 - Dependence on F42 lac fertility functions
AU - Porter, Ronald D.
PY - 1981/12/1
Y1 - 1981/12/1
N2 - F42 lac recombination with λplac5is normally twentyfold to fiftyfold higher than recombination between λplac5 and a chromosomal lac gene. The presence of an fi+ R1 plasmid in the same cells as F42 lac dramatically reduces this enhanced recombination level while the fi- R1 drd19 plasmid has little effect. When F42 lac traJ90 is tested in a sup+ strain, it shows a sharp reduction in recombination with λplac5 that can be largely reversed by the presence of a supF mutation that partially suppresses the traJ90 nonsense mutation. It is concluded that the enhanced recombination between F42 lac and λplac5 is largely dependent on the constitutive expression of F42 lac fertility functions.
AB - F42 lac recombination with λplac5is normally twentyfold to fiftyfold higher than recombination between λplac5 and a chromosomal lac gene. The presence of an fi+ R1 plasmid in the same cells as F42 lac dramatically reduces this enhanced recombination level while the fi- R1 drd19 plasmid has little effect. When F42 lac traJ90 is tested in a sup+ strain, it shows a sharp reduction in recombination with λplac5 that can be largely reversed by the presence of a supF mutation that partially suppresses the traJ90 nonsense mutation. It is concluded that the enhanced recombination between F42 lac and λplac5 is largely dependent on the constitutive expression of F42 lac fertility functions.
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U2 - 10.1007/BF00352504
DO - 10.1007/BF00352504
M3 - Article
C2 - 6801433
AN - SCOPUS:0019803886
VL - 184
SP - 355
EP - 358
JO - Molecular Genetics and Genomics
JF - Molecular Genetics and Genomics
SN - 1617-4615
IS - 3
ER -