Monitoring Complex Formation by Relaxation-Induced Pulse Electron Paramagnetic Resonance Distance Measurements.
Monitoring Complex Formation by Relaxation-Induced Pulse Electron Paramagnetic Resonance Distance Measurements.
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DOI:
10.1002/cphc.201700666
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发表时间:
2017-09-06
期刊:
影响因子:
--
通讯作者:
Bode BE
中科院分区:
文献类型:
--
作者:
Giannoulis A;Oranges M;Bode BE
Biomolecular complexes are often multimers fueling the demand for methods that allow unraveling their composition and geometric arrangement. Pulse electron paramagnetic resonance (EPR) spectroscopy is increasingly applied for retrieving geometric information on the nanometer scale. The emerging RIDME (relaxation‐induced dipolar modulation enhancement) technique offers improved sensitivity in distance experiments involving metal centers (e.g. on metalloproteins or proteins labelled with metal ions). Here, a mixture of a spin labelled ligand with increasing amounts of paramagnetic CuII ions allowed accurate quantification of ligand‐metal binding in the model complex formed. The distance measurement was highly accurate and critical aspects for identifying multimerization could be identified. The potential to quantify binding in addition to the high‐precision distance measurement will further increase the scope of EPR applications.
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影响因子:
1
作者:
Hagelueken, Gregor;Ward, Richard;Naismith, James H.;Schiemann, Olav
通讯作者:
Schiemann, Olav
影响因子:
16.6
作者:
Jassoy, J. Jacques;Berndhaeuser, Andreas;Schiemann, Olav
通讯作者:
Schiemann, Olav
影响因子:
5.7
作者:
Lumme, Christina;Altan-Martin, Hasret;Schleiff, Enrico
通讯作者:
Schleiff, Enrico
影响因子:
2.9
作者:
Meyer, Andreas;Schiemann, Olav
通讯作者:
Schiemann, Olav
DOI:
10.1021/jz301788n
发表时间:
2013-01-03
期刊:
The journal of physical chemistry letters
影响因子:
--
作者:
Borbat PP;Georgieva ER;Freed JH
通讯作者:
Freed JH