Publications of Gert von Helden

Mucha, E., A.I. Gonzalez Florez, M. Marianski, D. Thomas, W. Hoffmann, W.B. Struwe, H.S. Hahm, S. Gewinner, W. Schöllkopf, P.H. Seeberger, G.von Helden and K. Pagel: Glycan Fingerprinting via Cold-Ion Infrared Spectroscopy. Angewandte Chemie International Edition 56 (37), 11248–11251 (2017).

Seo, J., W. Hoffmann, S. Warnke, X. Huang, S. Gewinner, W. Schöllkopf, M.T. Bowers, G.von Helden and K. Pagel: An infrared spectroscopy approach to follow β-sheet formation in peptide amyloid assemblies. Nature Chemistry 9 (1), 39–44 (2017).

Seo, J., S. Warnke, K. Pagel, M.T. Bowers and G.von Helden: Infrared spectrum and structure of the homochiral serine octamer-dichloride complex. Nature Chemistry 9, 1263–1268 (2017).

Warnke, S., W. Hoffmann, J. Seo, E.D. Genst, G.von Helden and K. Pagel: From Compact to String—The Role of Secondary and Tertiary Structure in Charge-Induced Unzipping of Gas-Phase Proteins. Journal of the American Society for Mass Spectrometry 28 (4), 638–646 (2017).

Gonzalez Florez, A.I., E. Mucha, D.-S. Ahn, S. Gewinner, W. Schöllkopf, K. Pagel and G.von Helden: Charge-induced unzipping of isolated proteins to a defined secondary structure. Angewandte Chemie International Edition 55 (10), 3295–3299 (2016).

Göth, M., F. Lermyte, X.J. Schmitt, S. Warnke, G.von Helden, F. Sobott and K. Pagel: Gas-phase microsolvation of ubiquitin: investigation of crown ether complexation sites using ion mobility-mass spectrometry. Analyst 141 (19), 5502–5510 (2016).

Helden, G.von, W. Schöllkopf and K. Pagel: Strukturen von Peptidaggregaten erforscht mit dem neuen Freie-Elektronen-Laser des Fritz-Haber-Instituts. Jahrbuch / Max-Planck-Gesellschaft 9950614 (2016).

Hoffmann, W., M. Marianski, S. Warnke, J. Seo, C. Baldauf, G.von Helden and K. Pagel: Assessing the stability of alanine-based helices by conformer-selective IR spectroscopy. Physical Chemistry Chemical Physics 18 (29), 19950–19954 (2016).

Kölbel, K., S. Warnke, J. Seo, G.von Helden, R. Moretti, J. Meiler, K. Pagel and A. Sinz: Conformational Shift of a β-Hairpin Peptide upon Complex Formation with an Oligo–proline Peptide Studied by Mass Spectrometry. ChemistrySelect 1 (13), 3651–3656 (2016).

Seo, J., W. Hoffmann, S. Warnke, M.T. Bowers, K. Pagel and G.von Helden: Retention of Native Protein Structures in the Absence of Solvent: A Coupled Ion Mobility and Spectroscopic Study. Angewandte Chemie International Edition 55 (45), 14173–14176 (2016).

Seo, J., J. Jang, S. Warnke, S. Gewinner, W. Schöllkopf and G.von Helden: Stacking Geometries of Early Protoporphyrin IX Aggregates Revealed by Gas-Phase Infrared Spectroscopy. Journal of the American Chemical Society 138 (50), 16315–16321 (2016).

Seo, J., S. Warnke, S. Gewinner, W. Schöllkopf, M.T. Bowers, K. Pagel and G.von Helden: The impact of environment and resonance effects on the site of protonation of aminobenzoic acid derivatives. Physical Chemistry Chemical Physics 18 (36), 25474–25482 (2016).

Gonzalez Florez, A.I., D.-S. Ahn, S. Gewinner, W. Schöllkopf and G.von Helden: IR spectroscopy of protonated leu-enkephalin and its 18-crown-6 complex embedded in helium droplets. Physical Chemistry Chemical Physics 17 (34), 21902–21911 (2015).

Schubert, F., K. Pagel, M. Rossi, S. Warnke, M. Salwiczek, B. Koksch, G.von Helden, V. Blum, C. Baldauf and M. Scheffler: Native like helices in a specially designed β peptide in the gas phase. Physical Chemistry Chemical Physics 17 (7), 5376–5385 (2015).

Schubert, F., M. Rossi, C. Baldauf, K. Pagel, S. Warnke, G.von Helden, F. Filsinger, P. Kupser, G. Meijer, M. Salwiczek, B. Koksch, M. Scheffler and V. Blum: Exploring the conformational preferences of 20-residue peptides in isolation: Ac-Ala₁₉-Lys + H⁺ vs. Ac-Lys-Ala₁₉ + H⁺ and the current reach of DFT. Physical Chemistry Chemical Physics 17 (11), 7373–7385 (2015).

Urner, L.H., B.N.S. Thota, O. Nachtigall, S. Warnke, G.von Helden, R. Haag and K. Pagel: Online monitoring the isomerization of an azobenzene-based dendritic bolaamphiphile using ion mobility-mass spectrometry. Chemical Communications 51 (42), 8801–8804 (2015).

Warnke, S., G.von Helden and K. Pagel: Analyzing the higher order structure of proteins with conformer-selective ultraviolet photodissociation. Proteomics 15 (16), 2804–2812 (2015).

Warnke, S., J. Seo, J. Boschmans, F. Sobott, J.H. Scrivens, C. Bleiholder, M.T. Bowers, S. Gewinner, W. Schöllkopf, K. Pagel and G.von Helden: Protomers of Benzocaine: Solvent and Permittivity Dependence. Journal of the American Chemical Society 137 (12), 4236–4242 (2015).

Warnke, S., C. Baldauf, M.T. Bowers, K. Pagel and G.von Helden: Photodissociation of Conformer-Selected Ubiquitin Ions Reveals Site-Specific Cis/Trans Isomerization of Proline Peptide Bonds. Journal of the American Chemical Society 136 (29), 10308–10314 (2014).

Baldauf, C., K. Pagel, S. Warnke, G.von Helden, B. Koksch, V. Blum and M. Scheffler: How Cations Change Peptide Structure. Chemistry-a European Journal 19 (34), 11224–11234 (2013).