How accurately defined are the overtone coefficients in Gd(III)-Gd(III) RIDME?

Azarkh M, Keller K, Qi M, Godt A, Yulikov M (2022)
Journal of magnetic resonance 339: 107217.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Azarkh, Mykhailo; Keller, Katharina; Qi, MianUniBi ; Godt, AdelheidUniBi; Yulikov, Maxim
Abstract / Bemerkung
Relaxation-induced dipolar modulation enhancement (RIDME) is a pulse EPR technique that is particularly suitable to determine distances between paramagnetic centers with a broad EPR spectrum, e.g. metal-ion-based ones. As far as high-spin systems (S > ) are concerned, the RIDME experiment provides not only the basic dipolar frequency but also its overtones, which complicates the determination of interspin distances. Here, we present and discuss in a step-by-step fashion an r.m.s.d.-based approach for the calibration of the overtone coefficients for a series of molecular rulers doubly labeled with Gd(III)-PyMTA tags. The constructed 2D total-penalty diagrams help revealing that there is no unique set of overtone coefficients but rather a certain pool, which can be used to extract distance distributions between high-spin paramagnetic centers, as determined from the RIDME experiment. This is of particular importance for comparing RIDME overtone calibration and distance distributions obtained in different labs. Copyright © 2022 The Authors. Published by Elsevier Inc. All rights reserved.
Erscheinungsjahr
2022
Zeitschriftentitel
Journal of magnetic resonance
Band
339
Art.-Nr.
107217
eISSN
1096-0856
Page URI
https://pub.uni-bielefeld.de/record/2962519

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Azarkh M, Keller K, Qi M, Godt A, Yulikov M. How accurately defined are the overtone coefficients in Gd(III)-Gd(III) RIDME? Journal of magnetic resonance . 2022;339: 107217.
Azarkh, M., Keller, K., Qi, M., Godt, A., & Yulikov, M. (2022). How accurately defined are the overtone coefficients in Gd(III)-Gd(III) RIDME? Journal of magnetic resonance , 339, 107217. https://doi.org/10.1016/j.jmr.2022.107217
Azarkh, Mykhailo, Keller, Katharina, Qi, Mian, Godt, Adelheid, and Yulikov, Maxim. 2022. “How accurately defined are the overtone coefficients in Gd(III)-Gd(III) RIDME?”. Journal of magnetic resonance 339: 107217.
Azarkh, M., Keller, K., Qi, M., Godt, A., and Yulikov, M. (2022). How accurately defined are the overtone coefficients in Gd(III)-Gd(III) RIDME? Journal of magnetic resonance 339:107217.
Azarkh, M., et al., 2022. How accurately defined are the overtone coefficients in Gd(III)-Gd(III) RIDME? Journal of magnetic resonance , 339: 107217.
M. Azarkh, et al., “How accurately defined are the overtone coefficients in Gd(III)-Gd(III) RIDME?”, Journal of magnetic resonance , vol. 339, 2022, : 107217.
Azarkh, M., Keller, K., Qi, M., Godt, A., Yulikov, M.: How accurately defined are the overtone coefficients in Gd(III)-Gd(III) RIDME? Journal of magnetic resonance . 339, : 107217 (2022).
Azarkh, Mykhailo, Keller, Katharina, Qi, Mian, Godt, Adelheid, and Yulikov, Maxim. “How accurately defined are the overtone coefficients in Gd(III)-Gd(III) RIDME?”. Journal of magnetic resonance 339 (2022): 107217.

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