ArticleJournal of the Royal Society, Interface2019
Load-dependent adaptation near zero load in the bacterial flagellar motor.
Article in Journal of the Royal Society, Interface, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- An optically driven microstructure for torque measurement in rotary molecular motors.Microsystems & nanoengineering · 2026Article
- Long-range coupling regulates stator dynamics in the bacterial flagellar motor.bioRxiv : the preprint server for biology · 2025Article
- Signature of cooperativity in the stochastic fluctuations of small systems with application to the bacterial flagellar motor.Scientific reports · 2025Article
- Physical mechanism reveals bacterial slowdown above a critical number of flagella.Journal of the Royal Society, Interface · 2024Article
- A multi-state dynamic process confers mechano-adaptation to a biological nanomachine.Nature communications · 2022Article
- Relaxation time asymmetry in stator dynamics of the bacterial flagellar motor.Science advances · 2022Article
- Bacterial motility: machinery and mechanisms.Nature reviews. Microbiology · 2022Review
- Dynamic Hybrid Flagellar Motors-Fuel Switch and More.Frontiers in microbiology · 2022Review
- Improved bounds on entropy production in living systems.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Mechanosensitive remodeling of the bacterial flagellar motor is independent of direction of rotation.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Origins of eukaryotic excitability.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021Review
- Stator Dynamics Depending on Sodium Concentration in Sodium-Driven Bacterial Flagellar Motors.Frontiers in microbiology · 2021Article
- ATP synthase: Evolution, energetics, and membrane interactions.The Journal of general physiology · 2020Review
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Authors and funding
3 authors.
Funding
Abstract
The bacterial flagellar motor is an ion-powered transmembrane protein complex which drives swimming in many bacterial species. The motor consists of a cytoplasmic 'rotor' ring and a number of 'stator' units, which are bound to the cell wall of the bacterium. Recently, it has been shown that the number of functional torque-generating stator units in the motor depends on the external load, and suggested that mechanosensing in the flagellar motor is driven via a 'catch bond' mechanism in the motor's stator units. We present a method that allows us to measure-on a single motor-stator unit dynamics across a large range of external loads, including near the zero-torque limit. By attaching superparamagnetic beads to the flagellar hook, we can control the motor's speed via a rotating magnetic field. We manipulate the motor to four different speed levels in two different ion-motive force (IMF) conditions. This framework allows for a deeper exploration into the mechanism behind load-dependent remodelling by separating out motor properties, such as rotation speed and energy availability in the form of IMF, that affect the motor torque.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.