Manipulating protein conformations by single-molecule AFM-FRET nanoscopy.
Manipulating protein conformations by single-molecule AFM-FRET nanoscopy.
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DOI:
10.1021/nn2038669
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发表时间:
2012-02-28
期刊:
影响因子:
17.1
通讯作者:
Lu HP
中科院分区:
文献类型:
--
作者:
He Y;Lu M;Cao J;Lu HP
Combining atomic force microscopy and fluorescence resonance energy transfer spectroscopy (AFM-FRET), we have developed a single-molecule AFM-FRET nanoscopy approach capable of effectively pinpointing and mechanically manipulating a targeted dye-labeled single protein in a large sampling area, and simultaneously monitoring the conformational changes of the targeted protein by recording single-molecule FRET time trajectories. We have further demonstrated an application of using this nanoscopy on manipulation of single-molecule protein conformation and simultaneous single-molecule FRET measurement of a Cy3–Cy5 labeled kinase enzyme, HPPK (6-hydroxymethyl-7,8-dihydropterin pyrophosphokinase). By analyzing time-resolved FRET trajectories and correlated AFM force pulling curves of the targeted single-molecule enzyme, we are able to observe the protein conformational changes of a specific coordination by AFM mechanic force pulling.
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影响因子:
15
作者:
ASTUMIAN, RD;ROBERTSON, B
通讯作者:
ROBERTSON, B
DOI:
10.1073/pnas.96.3.893
发表时间:
1999-02-02
影响因子:
11.1
作者:
Ha, TJ;Ting, AY;Weiss, S
通讯作者:
Weiss, S
影响因子:
3.4
作者:
Harms, GS;Orr, G;Lu, HP
通讯作者:
Lu, HP
影响因子:
56.9
作者:
Eisenmesser, EZ;Bosco, DA;Kern, D
通讯作者:
Kern, D
影响因子:
64.8
作者:
Henzler-Wildman, Katherine A.;Thai, Vu;Kern, Dorothee
通讯作者:
Kern, Dorothee