Single-Molecule Test for Markovianity of the Dynamics along a Reaction Coordinate

被引:35
作者
Berezhkovskii, Alexander M. [1 ]
Makarov, Dmitrii E. [2 ,3 ]
机构
[1] NIH, Math & Stat Comp Lab, Off Intramural Res, Ctr Informat Technol, Bethesda, MD 20892 USA
[2] Univ Texas Austin, Dept Chem, Austin, TX 78712 USA
[3] Univ Texas Austin, Inst Computat Engn & Sci, Austin, TX 78712 USA
基金
美国国家科学基金会;
关键词
ACTIVATED RATE-PROCESSES; CONFORMATIONAL MEMORY; ENERGY LANDSCAPES; TRANSITION PATHS; DIFFUSION; PROTEINS; KINETICS; SIMULATION; HAIRPIN; KRAMERS;
D O I
10.1021/acs.jpclett.8b00956
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In an effort to answer the much-debated question of whether the time evolution of common experimental observables can be described as one-dimensional diffusion in the potential of mean force, we propose a simple criterion that allows one to test whether the Markov assumption is applicable to a single-molecule trajectory x(t). This test does not involve fitting of the data to any presupposed model and can be applied to experimental data with relatively low temporal resolution.
引用
收藏
页码:2190 / 2195
页数:11
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