Fluorescence‐based CRISPR interference system for controlled genetic repression and live single‐cell imaging in mycobacteria - Aix-Marseille Université
Article Dans Une Revue FEBS Letters Année : 2024

Fluorescence‐based CRISPR interference system for controlled genetic repression and live single‐cell imaging in mycobacteria

Résumé

In this research letter, we report the development and validation of a new subset of fluorescence‐based CRISPR interference (CRISPRi) tools for our scientific community. The pJL series is directly derived from the original pIRL CRISPRi vectors and conserves all the elements to perform inducible targeted gene repression. These vectors carry two distinct fluorescent markers under the constitutive promoter psmyc to simplify the selection of recombinant clones. We demonstrate the functionality of these vectors by targeting the expression of the glycopeptidolipid translocase mmpL4b and the essential genes rpoB and mmpL3 . Finally, we describe an efficient single‐step procedure to co‐transform mycobacterial species with this integrative genetic tool alongside episomal vectors. Such tools and approaches should be useful to foster discovery in mycobacterial research.

Dates et versions

hal-04818719 , version 1 (04-12-2024)

Identifiants

Citer

Janïs Laudouze, Vanessa Point, Wafaa Achache, Céline Crauste, Stéphane Canaan, et al.. Fluorescence‐based CRISPR interference system for controlled genetic repression and live single‐cell imaging in mycobacteria. FEBS Letters, 2024, ⟨10.1002/1873-3468.15071⟩. ⟨hal-04818719⟩
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