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International journal of molecular sciences >
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http://hdl.handle.net/2241/105540
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| Title: | Reconsideration of Dynamic Force Spectroscopy Analysis of Streptavidin-Biotin Interactions |
| Authors: | Taninaka, Atsushi
Takeuchi, Osamu
Shigekawa, Hidemi
谷中, 淳
武内, 修
重川, 秀実 |
| Issue Date: | May-2010 |
| Publisher: | Molecular Diversity Preservation International |
| Journal Title: | International journal of molecular sciences |
| Volume: | 11 |
| Issue: | 5 |
| Start Page: | 2134 |
| End Page: | 2151 |
| DOI: | 10.3390/ijms11052134 |
| PMID: | 20559507 |
| Abstract: | To understand and design molecular functions on the basis of molecular recognition processes, the microscopic probing of the energy landscapes of individual interactions in a molecular complex and their dependence on the surrounding conditions is of great importance. Dynamic force spectroscopy (DFS) is a technique that enables us to study the interaction between molecules at the single-molecule level. However, the obtained results differ among previous studies, which is considered to be caused by the differences in the measurement conditions. We have developed an atomic force microscopy technique that enables the precise analysis of molecular interactions on the basis of DFS. After verifying the performance of this technique, we carried out measurements to determine the landscapes of streptavidin-biotin interactions. The obtained results showed good agreement with theoretical predictions. Lifetimes were also well analyzed. Using a combination of cross-linkers and the atomic force microscope that we developed, site-selective measurement was carried out, and the steps involved in bonding due to microscopic interactions are discussed using the results obtained by site-selective analysis. |
| URI: | http://hdl.handle.net/2241/105540 |
| Rights: | © 2010 by the authors; licensee MDPI, Basel, Switzerland. |
| Text Version: | publisher |
| Appears in Collections: | 谷中 淳 (Taninaka Atsushi)
武内 修 (Takeuchi Osamu)
重川 秀実 (Shigekawa Hidemi)
International journal of molecular sciences
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