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Inactivation of Chromosomal Genes in Serratia marcescens

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Abstract

Gram-negative bacterium Serratia marcescens is a well-known environmental microorganism and the accepted clinical pathogen causing nosocomial infections. It attracts more attention in recent years due to the emergence of strains with multiple drug resistance. Standard recombinant techniques are difficult to apply to S. marcescens due to the presence of numerous hydrolytic enzymes, in particular, extracellular nuclease and restriction endonuclease, which degrade transforming DNAs. We overcame this obstacle by utilizing restrictionless nuclease-deficient mutant strain S. marcescens TT392. As a proof of principal, in this genetic background, we generated a knockout strain with deletion of macAB locus using lambda red technology. The resulting mutation could be easily moved to a new genetic background by generalized phage transduction. This strategy provides a good tool for evaluation of S. marcescens pathogenic potential.

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Acknowledgments

This work was supported in part by a subsidy to support the program of competitive growth of Kazan Federal University and Russian Science Foundation project 16-14-10200 (L.K., T.S., and L.B.).

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Authors and Affiliations

  1. Laboratory of Microbial Biotechnology, Institute of Fundamental Medicine and Biology, Kazan Federal University, 9 Parizhskoy Communy str., Kazan, 420021, Russia

    Leisan Kh. Kamaletdinova, Elvira Kh. Nizamutdinova, Tatiana V. Shirshikova, Irina M. Skipina & Lydia M. Bogomolnaya

  2. Texas A&M University Health Science Center, Bryan, TX, 77807, USA

    Lydia M. Bogomolnaya

Authors
  1. Leisan Kh. Kamaletdinova
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  2. Elvira Kh. Nizamutdinova
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  3. Tatiana V. Shirshikova
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  4. Irina M. Skipina
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  5. Lydia M. Bogomolnaya
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Correspondence to Lydia M. Bogomolnaya.

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Kamaletdinova, L.K., Nizamutdinova, E.K., Shirshikova, T.V. et al. Inactivation of Chromosomal Genes in Serratia marcescens . BioNanoSci. 6, 376–378 (2016). https://doi.org/10.1007/s12668-016-0249-2

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  • DOI: https://doi.org/10.1007/s12668-016-0249-2

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