Mass photometry enables label-free tracking and mass measurement of single proteins on lipid bilayers.
Mass photometry enables label-free tracking and mass measurement of single proteins on lipid bilayers.
复制标题
DOI:
10.1038/s41592-021-01261-w
复制
发表时间:
2021-10
期刊:
影响因子:
48
通讯作者:
Kukura P
中科院分区:
文献类型:
--
作者:
Foley EDB;Kushwah MS;Young G;Kukura P
The quantification of membrane-associated biomolecular interactions is crucial to our understanding of various cellular processes. State-of-the-art single-molecule approaches rely largely on the addition of fluorescent labels, which complicates the quantification of the involved stoichiometries and dynamics because of low temporal resolution and the inherent limitations associated with labeling efficiency, photoblinking and photobleaching. Here, we demonstrate dynamic mass photometry, a method for label-free imaging, tracking and mass measurement of individual membrane-associated proteins diffusing on supported lipid bilayers. Application of this method to the membrane remodeling GTPase, dynamin-1, reveals heterogeneous mixtures of dimer-based oligomers, oligomer-dependent mobilities, membrane affinities and (dis)association of individual complexes. These capabilities, together with assay-based advances for studying integral membrane proteins, will enable the elucidation of biomolecular mechanisms in and on lipid bilayers. Dynamic mass photometry allows label-free tracking and mass measurement of individual membrane-associated proteins diffusing on supported lipid bilayers. The approach can be used to monitor dynamic (dis)assembly of protein complexes.
登录
查看更多内容
影响因子:
15
作者:
Narayan, Priyanka;Ganzinger, Kristina A.;McColl, James;Weimann, Laura;Meehan, Sarah;Qamar, Seema;Carver, John A.;Wilson, Mark R.;George-Hyslop, Peter St.;Dobson, Christopher M.;Klenerman, David
通讯作者:
Klenerman, David
影响因子:
64.8
作者:
Kong L;Sochacki KA;Wang H;Fang S;Canagarajah B;Kehr AD;Rice WJ;Strub MP;Taraska JW;Hinshaw JE
通讯作者:
Hinshaw JE
影响因子:
48
作者:
Asher WB;Geggier P;Holsey MD;Gilmore GT;Pati AK;Meszaros J;Terry DS;Mathiasen S;Kaliszewski MJ;McCauley MD;Govindaraju A;Zhou Z;Harikumar KG;Jaqaman K;Miller LJ;Smith AW;Blanchard SC;Javitch JA
通讯作者:
Javitch JA
影响因子:
16.8
作者:
Loose, Martin;Fischer-Friedrich, Elisabeth;Schwille, Petra
通讯作者:
Schwille, Petra
影响因子:
7
作者:
Cheng, Ching-Ya;Hsieh, Chia-Lung
通讯作者:
Hsieh, Chia-Lung