Crossref journal-article
Hindawi Limited
Genetical Research (98)
Abstract

The R-factor RP1, which carried the markersamp neo tet, confers resistance to penicillins by specifying the synthesis of Type IIIa β-lactamase. It was detected initially in a strain ofPseudomonas aeruginosa(Sykes & Richmond, 1970) and fragments spontaneously inPs. aeruginosastrain Ps 18 to give clones which carry only theampmarker. Such clones are said to carry the element RP 1–1 since they are still capable of specifying the transfer of ampicillin and carbenicillin resistance to appropriate recipients in mating experiments. However, unlike lines carrying RP 1, they contain no detectable extrachromosomal DNA (Ingramet al.1972), and the likely supposition is that theampgene in these clones has become integrated into the bacterial chromosome together with the regions necessary to allow such strains to act asampgene donors in mating experiments. It is probably cells ofPs. aeruginosain which theampgene has become integrated together with an RTF region that are responsible for the transfer of chromosomal markers reported by Holloway & Stanisich (1971).

Bibliography

Richmond, M. H., & Sykes, R. B. (1972). The chromosomal integration of a β-lactamase gene derived from the P-type R-factor RP1 inEscherichia coli. Genetical Research, 20(2), 231–237.

Authors 2
  1. M. H. Richmond (first)
  2. R. B. Sykes (additional)
References 16 Referenced 33
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  16. 10.1128/MMBR.34.2.155-175.1970 / Bacteriological Reviews / Current linkage map of Escherichia coli by Taylor (1970)
Dates
Type When
Created 15 years, 11 months ago (Sept. 17, 2009, 3:51 a.m.)
Deposited 4 years, 8 months ago (Dec. 31, 2020, 5:47 p.m.)
Indexed 1 year, 4 months ago (April 5, 2024, 4:59 a.m.)
Issued 52 years, 11 months ago (Oct. 1, 1972)
Published 52 years, 11 months ago (Oct. 1, 1972)
Published Online 16 years, 4 months ago (April 14, 2009)
Published Print 52 years, 11 months ago (Oct. 1, 1972)
Funders 0

None

@article{Richmond_1972, title={The chromosomal integration of a β-lactamase gene derived from the P-type R-factor RP1 inEscherichia coli}, volume={20}, ISSN={1469-5073}, url={http://dx.doi.org/10.1017/s0016672300013732}, DOI={10.1017/s0016672300013732}, number={2}, journal={Genetical Research}, publisher={Hindawi Limited}, author={Richmond, M. H. and Sykes, R. B.}, year={1972}, month=oct, pages={231–237} }