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- W3025178822 abstract "ABSTRACT Salmonella enterica is an intracellular bacterial pathogen. The formation of its replication niche, which is composed of a vacuole associated with a network of membrane tubules, depends on the secretion of a set of bacterial effector proteins whose activities deeply modify the functions of the eukaryotic host cell. By recruiting and regulating the activity of the kinesin-1 molecular motor, Salmonella effectors PipB2 and SifA play an essential role in the formation of the bacterial compartments. In particular, they allow the formation of tubules from the vacuole and their extension along the microtubule cytoskeleton, and thus promote membrane exchanges and nutrient supply. We have developed in vitro and in cellulo assays to better understand the specific role played by these two effectors in the recruitment and regulation of kinesin-1. Our results reveal a specific interaction between the two effectors and indicate that, contrary to what studies on infected cells suggested, interaction with PipB2 is sufficient to relieve the autoinhibition of kinesin-1. Finally, they suggest the involvement of other Salmonella effectors in the control of the activity of this molecular motor. This article has an associated First Person interview with the first author of the paper." @default.
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- W3025178822 date "2020-05-01" @default.
- W3025178822 modified "2023-10-18" @default.
- W3025178822 title "Regulation of kinesin-1 activity by the <i>Salmonella enterica</i> effectors PipB2 and SifA" @default.
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- W3025178822 doi "https://doi.org/10.1242/jcs.239863" @default.
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