RT Journal Article T1 Conformational dynamics of a single protein monitored for 24 h at video rate A1 Ye, Weixiang A1 Götz, Markus A1 Celiksoy, Sirin A1 Tüting, Laura A1 Ratzke, Christoph A1 Prasad, Janak A1 Ricken, Julia A1 Wegner, Seraphine A1 Ahijado Guzmán, Rubén A1 Hugel, Thorsten A1 Sönnichsen, Carsten AB We use plasmon rulers to follow the conformational dynamics of a single protein for up to 24 h at a video rate. The plasmon ruler consists of two gold nanospheres connected by a single protein linker. In our experiment, we follow the dynamics of the molecular chaperone heat shock protein 90 (Hsp90), which is known to show “open” and “closed” conformations. Our measurements confirm the previously known conformational dynamics with transition times in the second to minute time scale and reveals new dynamics on the time scale of minutes to hours. Plasmon rulers thus extend the observation bandwidth 3–4 orders of magnitude with respect to single-molecule fluorescence resonance energy transfer and enable the study of molecular dynamics with unprecedented precision. PB American Chemical Society SN 1530-6984 YR 2018 FD 2018 LK https://hdl.handle.net/20.500.14352/93208 UL https://hdl.handle.net/20.500.14352/93208 LA eng NO Ye, W.; Götz, M.; Celiksoy, S.; Tüting, L.; Ratzke, C.; Prasad, J.; Ricken, J.; Wegner, S. V.; Ahijado-Guzmán, R.; Hugel, T.; Sönnichsen, C. Conformational Dynamics of a Single Protein Monitored for 24 h at Video Rate. Nano Lett. 2018, 18, 6633-6637 DOI:10.1021/acs.nanolett.8b03342. NO European Commission DS Docta Complutense RD 18 abr 2025