Monitoring RNA Unwinding by the Transcription Termination Factor Rho from Mycobacterium tuberculosis

Abstract : Transcription termination factor Rho is a ring-shaped, homo-hexamieric RNA translocase that dissociates transcription elongation complexes and transcriptional RNA-DNA duplexes (R-loops) in bacteria. The molecular mechanisms underlying these biological functions have been essentially studied with Rho enzymes from Escherichia coli or close Gram-negative relatives. However, phylo-divergent Rho factors may have distinct properties. Here, we describe methods for the preparation and in vitro characterization (ATPase and helicase activities) of the Rho factor from Mycobacterium tuberculosis, a specimen with uncharacteristic molecular and enzymatic features. These methods set the stage for future studies aimed at better defining the diversity of enzymatic properties of Rho across the bacterial kingdom.
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https://hal.archives-ouvertes.fr/hal-01174055
Contributor : Isabelle Frapart <>
Submitted on : Wednesday, July 8, 2015 - 10:52:00 AM
Last modification on : Wednesday, April 24, 2019 - 2:00:04 PM

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F. d'Heygère, A. Schwartz, F. Coste, B. Castaing, M. Boudvillain. Monitoring RNA Unwinding by the Transcription Termination Factor Rho from Mycobacterium tuberculosis. Methods in Mecular Biology, 1259, Springer, pp.293-311, 2015, RNA remodelling proteins (Boudvillain, ed), 978-1-4939-2213-0. ⟨10.1007/978-1-4939-2214-7_18⟩. ⟨hal-01174055⟩

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