Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1979;28(3):213-20.

New types of Escherichia coli K-12 facultative recombination deficient mutants resistant to ultraviolet

J Baj, M Bednarska, H Białkowska-Hobrzańska, A Blinkowa, E Jagusztyn-Krynicka, B Kauc, A Kraczkiewicz-Dowjat, E Piechucka, K I Wolska, W J Kunicki-Goldfinger
  • PMID: 92170

New types of Escherichia coli K-12 facultative recombination deficient mutants resistant to ultraviolet

J Baj et al. Acta Microbiol Pol. 1979.

Abstract

Numerous facultative temperature sensitive recombination deficient mutants of Escherichia coli K-12 strain 108 were isolated after mutagenization with nitrosoguanidine. The majority of the mutants were resistant to UV irradiation. Three mutants, KBP72, KBP169 and KBP610, with marked recombination deificiency (300 to 15,000 times) at 42 degrees C, were UV resistant; their sensitivity to mitomycin C was altered only slightly or not at all. Mutation KBP72 was co-transduced with ilv (83 unit on E. coli genetic map). The mutant is not able to form a functional recombinat structure. Two other mutations are located between 0 and 19 unit of the genetic map.

PubMed Disclaimer

Substances