期刊
JOURNAL OF BIOTECHNOLOGY
卷 112, 期 1-2, 页码 13-23出版社
ELSEVIER
DOI: 10.1016/j.jbiotec.2004.04.017
关键词
single molecule force spectroscopy; chemical reaction kinetics
The forced rupture of single chemical bonds in biomolecular compounds (e.g. ligand-receptor systems) as observed in dynamic force spectroscopy experiments is addressed. Under the assumption that the probability of bond rupture depends only on the instantaneously acting force, a data collapse onto a single master curve is predicted. For rupture data obtained experimentally by dynamic AFM force spectroscopy of a ligand-receptor bond between a DNA and a regulatory protein we do not find such a collapse. We conclude that the above mentioned, generally accepted assumption is not satisfied and we discuss possible explanations. (C) 2004 Elsevier B.V. All rights reserved.
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