Abstract
The buoyant density of deoxyribonucleic acid (DNA) from the temperature-sensitive R factor, Rts1, was determined by CsCl density-gradient centrifugation. Rts1 was found to consist of a single species of DNA of density 1.705 g/cm3, which corresponds to a base composition of 45% guanine plus cytosine. This value is distinct from the densities previously reported for other R factors, suggesting that Rts1 represents a new molecular class of R factors.
Full text
PDF
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Falkow S., Citarella R. V., Wohlhieter J. A. The molecular nature of R-factors. J Mol Biol. 1966 May;17(1):102–116. doi: 10.1016/s0022-2836(66)80097-9. [DOI] [PubMed] [Google Scholar]
- MARMUR J., ROWND R., FALKOW S., BARON L. S., SCHILDKRAUT C., DOTY P. The nature of intergeneric episomal infection. Proc Natl Acad Sci U S A. 1961 Jul 15;47:972–979. doi: 10.1073/pnas.47.7.972. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Nisioka T., Mitani M., Clowes R. Composite circular forms of R factor deoxyribonucleic acid molecules. J Bacteriol. 1969 Jan;97(1):376–385. doi: 10.1128/jb.97.1.376-385.1969. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Rownd R., Nakaya R., Nakamura A. Molecular nature of the drug-resistance factors of the Enterobacteriaceae. J Mol Biol. 1966 Jun;17(2):376–393. doi: 10.1016/s0022-2836(66)80149-3. [DOI] [PubMed] [Google Scholar]
- Rownd R. Replication of a bacterial episome under relaxed control. J Mol Biol. 1969 Sep 28;44(3):387–402. doi: 10.1016/0022-2836(69)90368-4. [DOI] [PubMed] [Google Scholar]
- SCHILDKRAUT C. L., MARMUR J., DOTY P. Determination of the base composition of deoxyribonucleic acid from its buoyant density in CsCl. J Mol Biol. 1962 Jun;4:430–443. doi: 10.1016/s0022-2836(62)80100-4. [DOI] [PubMed] [Google Scholar]
- Terawaki Y., Kakizawa Y., Takayasu H., Yoshikawa M. Temperature sensitivity of cell growth in Escherichia coli associated with the temperature sensitive R(KM) factor. Nature. 1968 Jul 20;219(5151):284–285. doi: 10.1038/219284a0. [DOI] [PubMed] [Google Scholar]
- Terawaki Y., Takayasu H., Akiba T. Thermosensitive replication of a kanamycin resistance factor. J Bacteriol. 1967 Sep;94(3):687–690. doi: 10.1128/jb.94.3.687-690.1967. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Yokota T., Kanamaru Y., Mori R., Akiba T. Recombination between a thermosensitive kanamycin resistance factor and a nonthermosensitive multiple-drug resistant factor. J Bacteriol. 1969 Jun;98(3):863–873. doi: 10.1128/jb.98.3.863-873.1969. [DOI] [PMC free article] [PubMed] [Google Scholar]