15N–1H Transfer of Light-Induced Nuclear Hyperpolarization in Frozen Photosynthetic Reaction Centers
15N–1H Transfer of Light-Induced Nuclear Hyperpolarization in Frozen Photosynthetic Reaction Centers
复制标题
冷冻光合反应中心光诱导核超极化的 15Nâ1H 转移
DOI:
10.1007/s00723-019-1110-x
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发表时间:
2019
影响因子:
1
通讯作者:
J. Matysik
中科院分区:
文献类型:
--
作者:
P. Bielytskyi;D. Gräsing;S. Zahn;A. Alia;J. Matysik
Recently, we have demonstrated the possibility to transfer the light-induced hyperpolarization occurring on select13C nuclei of photosynthetic cofactors due to the solid-state photochemically induced dynamic nuclear polarization (photo-CIDNP) effect into the proton pool via inverse13C–1H cross-polarization Bielytskyi et al. (J Magn Reson 293: 82–91, 2018). Such approach allowed us to observe the selective response from the protons belonging to photochemically active cofactors in their native protein environment. In the present study, we demonstrate that also15N nuclei can be used as a source of polarization in a similar type of experiments. We present the 2D photo-CIDNP15N–1H heteronuclear correlation (HETCOR) experiment acquired on uniformly15N-labeled quinone-blocked reaction center (RC) fromRhodobacter sphaeroidesR26. Obtained1H chemical shifts match with previously observed ones on selectively13C-labeled RC fromRhodobacter sphaeroidesWT. We expect that using15N as a source of polarization in potential heteronuclear spin-torch experiments could be advantageous for systems where the procedure for selective13C labeling is not yet established.
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影响因子:
2.9
作者:
E. Schulten;J. Matysik;Alía;S. Kiihne;J. Raap;J. Lugtenburg;P. Gast;A. Hoff;H. D. de Groot
通讯作者:
H. D. de Groot
影响因子:
2.9
作者:
Smitha Surendran Thamarath;A. Alia;Eugenio Daviso;D. Mance;J. Golbeck;J. Matysik
通讯作者:
J. Matysik
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
Eugenio Daviso;K. B. Gupta;S. Prakash;P. Gast;A. Alia;G. Jeschke;J. Matysik
通讯作者:
J. Matysik
影响因子:
2
作者:
T. Egorova;B. van Rossum;C. Erkelens;H. D. de Groot
通讯作者:
H. D. de Groot
影响因子:
15
作者:
Smitha Surendran Thamarath;B. Bode;S. Prakash;K. B. Sai Sankar Gupta;A. Alia;G. Jeschke;J. Matysik
通讯作者:
J. Matysik