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FBS Colloquia No.378Protonic NanoMachine Group

Seminar or Lecture

How is the length of the flagellar hook of Salmonella controlled?

Tohru Minamino [Associate Professor, Protonic NanoMachine Group]

Date and Time 28 Jan. 2025 (Tue), 12:15~13:00
Place 2F Seminar Room, BioSystems Building
Language Japanese
Contact

Tohru Minamino (Associate Professor)
E-mail: minamino.tohru.fbs[at]osaka-u.ac.jp
TEL: 06-6879-4625

How is the length of the flagellar hook of Salmonella controlled?

Salmonella enterica serovar Typhimurium can swim in liquid environments by rotating flagella at high speed to explore more favorable environments for survival. The flagellum is divided into three distinct parts: a membrane-embedded basal body, which acts as a rotary motor, a filament, which works as a helical propeller, and a hook, which functions as a universal joint to transmit motor torque to the long helical filament. The hook length of Salmonella is controlled to be about 55 nm, and the hook length control is important for proper universal joint function of the hook structure. In this colloquium, I will present our current understanding of the hook length control mechanism in Salmonella.

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