Separation of cis and trans Isomers of Polyproline by FAIMS Mass Spectrometry.
Separation of cis and trans Isomers of Polyproline by FAIMS Mass Spectrometry.
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DOI:
10.1007/s13361-016-1482-1
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发表时间:
2016-12
影响因子:
3.2
通讯作者:
Cooper, Helen J.
中科院分区:
文献类型:
--
作者:
Creese, Andrew J.;Cooper, Helen J.
关键词:
High field asymmetric waveform ion mobility spectrometry (FAIMS) is well-established as a tool for separating peptide isomers (sequence inversions and post-translationally modified localization variants). Here, we demonstrate the FAIMS is able to differentiate cis and trans isomers of polyproline. Polyproline assumes an all-cis conformation—the PPI helix—in 1-propanol, and an all-trans conformation—the PPII helix—in aqueous solutions. Differentiation of these conformers may be achieved both through use of a cylindrical FAIMS device and a miniaturized ultrahigh field planar FAIMS device. ᅟ The online version of this article (doi:10.1007/s13361-016-1482-1) contains supplementary material, which is available to authorized users.
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作者:
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通讯作者:
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