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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, I use the Jensen lower bound for the entropy production rate to derive constraints on performance. 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, I identify conditions for saturation of these Pareto frontiers.

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Dynamic and Thermodynamic Bounds for Collective Motor-Driven Transport

  • 章节

  • 发表日期：

    2025年

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  • Matthew Leighton

摘要

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, I use the Jensen lower bound for the entropy production rate to derive constraints on performance. 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, I identify conditions for saturation of these Pareto frontiers.