Conformer-selective photoelectron spectroscopy of α-lactalbumin derived multianions in the gas phase.
Conformer-selective photoelectron spectroscopy of α-lactalbumin derived multianions in the gas phase.
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气相中α-乳清蛋白衍生的多阴离子的构象选择性光电子能谱
DOI:
10.1039/c3cp54596b
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
M.M. Kappes
中科院分区:
文献类型:
--
作者:
M. Vonderach;M.-O. WinghartL. MacAleese;F. Chirot;R. Antoine;Ph. Dugourd;P. Weis;O. Hampe;M.M. Kappes
We have recorded conformer-selective, gas-phase photoelectron spectra of α-lactalbumin derived multianions generated by electrospraying solutions of both the native protein and its denatured form (as prepared by breaking the sulfur–sulfur bonds by chemical reduction). Three different groups of gas-phase multianion conformers have been observed and characterized. Highly-folded and partially-unfolded structures are obtained from solutions of the native protein. Only highly-elongated conformers are observed upon electrospraying the denatured protein. Adiabatic detachment energies were determined at several negative charge states for each conformer group. In comparison to highly-elongated conformations, highly-folded structures show a steeper decrease of electron binding energy with increasing negative charge. By comparing experimental detachment energies for highly-elongated structures with the predictions of a simple electrostatic model calculation, we have determined the effective dielectric shielding constant.
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DOI:
10.1016/j.jasms.2008.03.018
发表时间:
2008-07-01
影响因子:
3.2
作者:
Balbeur, Dorothee;Widart, Joelle;De Pauw, Edwin
通讯作者:
De Pauw, Edwin
影响因子:
15
作者:
Katerina Matheis;L. Joly;R. Antoine;F. Lépine;C. Bordas;Oli T. Ehrler;A. Allouche;M. Kappes;P. Dugourd
通讯作者:
P. Dugourd
DOI:
--
发表时间:
1997
期刊:
影响因子:
--
作者:
T. Wyttenbach;G. Helden;Joseph J. Batka;Douglas Carlat;M. Bowers
通讯作者:
M. Bowers
影响因子:
7.4
作者:
Hoaglund, CS;Valentine, SJ;Clemmer, DE
通讯作者:
Clemmer, DE
DOI:
--
发表时间:
1985
期刊:
影响因子:
--
作者:
T. Edwards;D. P. Weaver;R. Adams;S. Hulsizer;D. H. Campbell
通讯作者:
D. H. Campbell