Mapping of genes determining nonpermissiveness and host-specific restriction to bacteriophages in Bacillus subtilis Marburg (original) (raw)

Summary

Bacillus subtilis Marburg is nonpermissive for the multiplication of bacteriophages SP10 and ϕNR2. A permissive mutant was derived from the Marburg strain, and the genetic determinants of nonpermissiveness were analyzed by PBS1 transduction. The simultaneous presence of two genes as mutant alleles, nonA and nonB, was necessary for permissiveness. The gene nonA is linked very closely to rfm (cotransfer: 95%); nonB is located between dal and purB (cotransfer of nonB and _purB_6: 48%). The genetic determinant of host-specific restriction intrinsic to the Marburg strain (hsrM) was found to be identical or very closely linked to nonB. The segregation of nonB and hsrM has never been observed in the course of transduction analysis. The mutation, _hsrM_1, diminishes the restriction activity, but not the host-controlled modification.

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Authors and Affiliations

1. Laboratory of Microbiology, The Institute of Physical and Chemical Research, 351, Wako-shi, Saitama, Japan
   Takehiko Shibata & Tadahiko Ando
2. The Institute of Applied Microbiology, Tokyo University, Yayoi-l(one) Bunkyo-ku, 113, Tokyo, Japan
   Hiuga Saito

Authors

1. Hiuga Saito
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2. Takehiko Shibata
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3. Tadahiko Ando
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Communicated by W. Arber

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Saito, H., Shibata, T. & Ando, T. Mapping of genes determining nonpermissiveness and host-specific restriction to bacteriophages in Bacillus subtilis Marburg.Molec. gen. Genet. 170, 117–122 (1979). https://doi.org/10.1007/BF00337785

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• Received: 24 June 1978
• Issue Date: January 1979
• DOI: https://doi.org/10.1007/BF00337785

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