Resonant neutral-particle emission in collisions of electrons with peptide ions in a storage ring

被引：37

作者：

Tanabe, T ^{[1
]}

Noda, K

Saito, M

Lee, S

Ito, Y

Takagi, H

机构：

[1] KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan

[2] Natl Inst Radiol Sci, Chiba 2638555, Japan

[3] Kyoto Prefectural Univ, Kyoto 6068522, Japan

[4] Kitasato Univ, Ctr Nat Sci, Sagamihara, Kanagawa 2288555, Japan

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.90.193201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Electron-biomolecular ion collisions were studied using an electrostatic storage ring with a merging beam technique for singly protonated peptides (angiotensin I, II, and III). A strong neutral-particle emission at around 6.5 eV was found in addition to neutrals from recombination at low energies. The rates of the high-energy peak greatly decreased with a slight decrease in the number of amino-acid residues from angiotensin I to III. These results suggest that some peptide bonds were selectively cleaved.

引用

页码：1 / 193201

页数：4

共 38 条

[1] Neutral-particle emission in collisions of electrons with biomolecular ions in an electrostatic storage ring
Tanabe, T
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[4] Neutral-particle emission from multiply charged biomolecular ions in collisions with electrons
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[5] Resonant neutral-particle emission correlated with base-base interactions in collisions of electrons with protonated and sodiated dinucleotide monocations
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[7] Resonant neutral particle emission in collisions of electrons with protonated peptides with disulfide bonds at high energies
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[10] LASER COOLING OF STORED IONS IN ASTRID - A STORAGE RING FOR IONS AND ELECTRONS
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