期刊
PHYSICAL REVIEW LETTERS
卷 100, 期 5, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.100.058106
关键词
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We perform theoretical studies of stretching of 20 proteins with knots within a coarse-grained model. The knot's ends are found to jump to well defined sequential locations that are associated with sharp turns, whereas in homopolymers they diffuse around and eventually slide off. The waiting times of the jumps are increasingly stochastic as the temperature is raised. Knots typically do not return to their native locations when a protein is released after stretching.
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