Electrostatic stabilization of a native protein structure in the gas phase.
Electrostatic stabilization of a native protein structure in the gas phase.
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DOI:
10.1002/anie.201005112
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发表时间:
2011-01-24
影响因子:
16.6
通讯作者:
Tollinger, Martin
中科院分区:
文献类型:
--
作者:
Breuker, Kathrin;Brueschweiler, Sven;Tollinger, Martin
关键词:
Recently, a general picture has been proposed of how long, and to what extent, native protein structure can be retained in the gas phase.[1a] In particular, molecular dynamics simulations suggest that salt bridges and ionic hydrogen bonds on the protein surface can transiently stabilize the global fold shortly after desolvation.[1b] However, the use of native mass spectrometry [2] for studying protein solution structure is still controversial, mostly because site-specific experimental gasphase data [3] is scarce. Here we report electron capture dissociation (ECD)[4] data on the gas-phase structures of the three-helix bundle protein KIX [5](Figure1) that indicate substantial preservation of the native solution structure on a timescale of at least 4 s. We demonstrate that in the gas phase, the most stable regions are those stabilized by salt bridges and ionic hydrogen bonds.
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影响因子:
5.6
作者:
Schanda, Paul;Brutscher, Bernhard;Tollinger, Martin
通讯作者:
Tollinger, Martin
影响因子:
15
作者:
Breuker, K;Oh, HB;McLafferty, FW
通讯作者:
McLafferty, FW
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5.6
作者:
De Guzman, RN;Goto, NK;Wright, PE
通讯作者:
Wright, PE
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15
作者:
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通讯作者:
Jarrold, MF
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7.4
作者:
Badman, ER;Hoaglund-Hyzer, CS;Clemmer, DE
通讯作者:
Clemmer, DE