A useful gene cassette for conditional knock-down of essential genes by targeted promoter replacement in Mycobacteria

Autor: Pauline Texier, Michèle Coddeville, Patricia Bordes, Pierre Genevaux
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: BioTechniques, Vol 65, Iss 3, Pp 159-162 (2018)
Druh dokumentu: article
ISSN: 1940-9818
0736-6205
DOI: 10.2144/btn-2018-0074
Popis: A direct method to study essential genes is to construct conditional knock-down mutants by replacement of their native promoter by an inducible one. In Mycobacteria, replacement of an essential gene promoter with an anhydrotetracycline inducible one was successfully used but required a multi-step approach. In this work, we describe a gene cassette for the engineering of a conditional knock-down mutant, which allows the one-step targeted replacement of mycobacterial promoters by an anhydrotetracycline-inducible promoter. The functionality of this cassette was successfully tested by engineering conditional clpP and SecA1 mutants of Mycobacterium smegmatis.
Databáze: Directory of Open Access Journals