The large endogenous plasmid of Anacystis nidulans: Mapping, cloning and localization of the origin of replication
β Scribed by Laudenbach, David E. ;Straus, Neil A. ;Gendel, Steyen ;Williams, John P.
- Publisher
- Springer
- Year
- 1983
- Tongue
- English
- Weight
- 588 KB
- Volume
- 192
- Category
- Article
- ISSN
- 0026-8925
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β¦ Synopsis
Anacystis nidulans contains two cryptic plasmids of 8.0 (pANS) and 48.5 (pANL) kilobasepairs (kbp). A clone bank of the large plasmid pANL consisting of 7 Barn HI fragments has been established. The cloned fragments were used as radioactive probes to Barn HI, Sal L Hind III and Eco R1 digests of pANL in blot hybridization experiments to verify the clones and map the restriction fragments. Further size characterization of the physical map was done by restriction analysis of the cloned fragments. The origin of replication has been located in the largest Barn HI fragment of the large plasmid.
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We describe the molecular cloning of BglII fragments of the hybrid plasmid pRS5 (pSC101 and EcoRI fragments of F; f7, f5, f3 and f6). The clones isolated were examined for the expression of F-specified replication, incompatibility, mobilization and inhibition of T7 bacteriophage multiplication. Prot
Plasmids were found in strains representing all four species of the genus Deinococcus viz. D. radiodurans, D. radiopugnans, D. radiophilus and D. proteolyticus but were not found in the most intensively-investigated strain of the genus, D. radiodurans R1. Their sizes were calculated from electron mi