A riboswitch-based inducible gene expression system for mycobacteria.
A riboswitch-based inducible gene expression system for mycobacteria.
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DOI:
10.1371/journal.pone.0029266
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发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Bertozzi CR
中科院分区:
文献类型:
--
作者:
Seeliger JC;Topp S;Sogi KM;Previti ML;Gallivan JP;Bertozzi CR
Research on the human pathogen Mycobacterium tuberculosis (Mtb) would benefit from novel tools for regulated gene expression. Here we describe the characterization and application of a synthetic riboswitch-based system, which comprises a mycobacterial promoter for transcriptional control and a riboswitch for translational control. The system was used to induce and repress heterologous protein overexpression reversibly, to create a conditional gene knockdown, and to control gene expression in a macrophage infection model. Unlike existing systems for controlling gene expression in Mtb, the riboswitch does not require the co-expression of any accessory proteins: all of the regulatory machinery is encoded by a short DNA segment directly upstream of the target gene. The inducible riboswitch platform has the potential to be a powerful general strategy for creating customized gene regulation systems in Mtb.
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影响因子:
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通讯作者:
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