Characterization of Conformational Ensembles of Protonated N-glycans in the Gas-Phase.
Characterization of Conformational Ensembles of Protonated N-glycans in the Gas-Phase.
复制标题
气相中质子化N-聚糖的构象合奏的表征。
DOI:
10.1038/s41598-018-20012-0
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发表时间:
2018-01-26
影响因子:
4.6
通讯作者:
Sugita Y
中科院分区:
文献类型:
--
作者:
Re S;Watabe S;Nishima W;Muneyuki E;Yamaguchi Y;MacKerell AD Jr;Sugita Y
Ion mobility mass spectrometry (IM-MS) is a technique capable of investigating structural changes of biomolecules based on their collision cross section (CCS). Recent advances in IM-MS allow us to separate carbohydrate isomers with subtle conformational differences, but the relationship between CCS and atomic structure remains elusive. Here, we characterize conformational ensembles of gas-phase N-glycans under the electrospray ionization condition using molecular dynamics simulations with enhanced sampling. We show that the separation of CCSs between isomers reflects folding features of N-glycans, which are determined both by chemical compositions and protonation states. Providing a physicochemical basis of CCS for N-glycans helps not only to interpret IM-MS measurements but also to estimate CCSs of complex glycans.
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影响因子:
16.6
作者:
Arcella, Annalisa;Dreyer, Jens;Orozco, Modesto
通讯作者:
Orozco, Modesto
影响因子:
5.5
作者:
Guvench, Olgun;Hatcher, Elizabeth;Venable, Richard M.;Pastor, Richard W.;MacKerell, Alexander D., Jr.
通讯作者:
MacKerell, Alexander D., Jr.
影响因子:
3
作者:
Guvench, Olgun;Greene, Shannon N.;Kamath, Ganesh;Brady, John W.;Venable, Richard M.;Pastor, Richard W.;Mackerell, Alexander D., Jr.
通讯作者:
Mackerell, Alexander D., Jr.
影响因子:
21.8
作者:
Bleiholder, Christian;Dupuis, Nicholas F.;Wyttenbach, Thomas;Bowers, Michael T.
通讯作者:
Bowers, Michael T.
影响因子:
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作者:
Mesleh, MF;Hunter, JM;Jarrold, MF
通讯作者:
Jarrold, MF