Dynamic and Thermodynamic Bounds for Collective Motor-Driven Transport.

Molecular motors work collectively to transport cargo within cells, with anywhere from one to several hundred motors towing a single cargo. For a broad class of collective-transport systems, we use tools from stochastic thermodynamics to derive a new lower bound for the entropy production rate which is tighter than the second law. This implies new bounds on the velocity, efficiency, and precision of general transport systems and a set of analytic Pareto frontiers for identical motors. In a specific model, we identify conditions for saturation of these Pareto frontiers.

Citation

Matthew P Leighton, David A Sivak. Dynamic and Thermodynamic Bounds for Collective Motor-Driven Transport. Physical review letters. 2022 Sep 09;129(11):118102

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PMID: 36154431

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