Transport Characteristics of Molecular Motors
Lukasz Machura, Marcin Kostur, Jerzy Luczka
TL;DR
This paper investigates the transport properties of molecular motors using a simplified Brownian ratchet model, analyzing efficiency and diffusion to understand optimal transport conditions.
Contribution
It introduces a stochastic model for molecular motor transport and systematically studies how parameters affect efficiency and diffusion.
Findings
Friction and non-equilibrium driving significantly influence transport efficiency.
Optimal transport occurs within specific parameter regions.
Transport quantifiers are affected by energy input and system friction.
Abstract
Properties of transport of molecular motors are investigated. A simplified model based on the concept of Brownian ratchets is applied. We analyze a stochastic equation of motion by means of numerical methods. The transport is systematically studied with respect to its energetic efficiency and quality expressed by an effective diffusion coefficient. We demonstrate the role of friction and non-equilibrium driving on the transport quantifiers and identify regions of a parameter space where motors are optimally transported.
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