Formation and stability of charged amino acid clusters and the role of chirality

B. Concina; P. Hvelplund; A. B. Nielsen; S. Brøndsted Nielsen; J. Rangama; B. Liu; S. Tomita

doi:10.1016/j.jasms.2005.10.014

Formation and stability of charged amino acid clusters and the role of chirality

B. Concina
, P. Hvelplund^*
, A. B. Nielsen
, S. Brøndsted Nielsen
, J. Rangama
, B. Liu
, S. Tomita

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

32 Citations (Scopus)

Abstract

Amino acid clusters have been studied by several groups and most notably magic number clusters and chiral recognition have been reported. In this work, we have studied the formation of amino acid clusters by electrospray ionization (ESI) and their stability by high-energy collision-induced dissociation (CID). Appearance sizes were determined for multiply charged clusters where the charge is either due to protons or to sodium ions. Finally, we conclude that chiral selectivity plays an important role in cluster formation but seems to be of minor importance for the fragmentation of mixed clusters.

Original language	English
Pages (from-to)	275-279
Number of pages	5
Journal	Journal of the American Society for Mass Spectrometry
Volume	17
Issue number	2
DOIs	https://doi.org/10.1016/j.jasms.2005.10.014
Publication status	Published - Feb 2006
Externally published	Yes

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AU - Concina, B.

AU - Hvelplund, P.

AU - Nielsen, A. B.

AU - Nielsen, S. Brøndsted

AU - Rangama, J.

AU - Liu, B.

AU - Tomita, S.

PY - 2006/2

Y1 - 2006/2

N2 - Amino acid clusters have been studied by several groups and most notably magic number clusters and chiral recognition have been reported. In this work, we have studied the formation of amino acid clusters by electrospray ionization (ESI) and their stability by high-energy collision-induced dissociation (CID). Appearance sizes were determined for multiply charged clusters where the charge is either due to protons or to sodium ions. Finally, we conclude that chiral selectivity plays an important role in cluster formation but seems to be of minor importance for the fragmentation of mixed clusters.

AB - Amino acid clusters have been studied by several groups and most notably magic number clusters and chiral recognition have been reported. In this work, we have studied the formation of amino acid clusters by electrospray ionization (ESI) and their stability by high-energy collision-induced dissociation (CID). Appearance sizes were determined for multiply charged clusters where the charge is either due to protons or to sodium ions. Finally, we conclude that chiral selectivity plays an important role in cluster formation but seems to be of minor importance for the fragmentation of mixed clusters.

UR - https://www.scopus.com/pages/publications/31844443079

U2 - 10.1016/j.jasms.2005.10.014

DO - 10.1016/j.jasms.2005.10.014

M3 - Article

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JO - Journal of the American Society for Mass Spectrometry

JF - Journal of the American Society for Mass Spectrometry

IS - 2

ER -

Formation and stability of charged amino acid clusters and the role of chirality

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