Výsledky vyhledávání - "Polfer, N.C."

Disfavoring Macrocycle b Fragments by Constraining Torsional Freedom: The 'Twisted' Case of QWFGLM b(6)

Autor: Tirado, M., Rutters, J., Chen, X., Yeung, A., van Maarseveen, J., Eyler, J.R., Berden, G., Oomens, J., Polfer, N.C.

Publikováno v: Journal of the American Society for Mass Spectrometry, 23, 475-482

While recent studies have shown that for some peptides, such as oligoglycines and Leu-enkephalin, mid-sized b fragment ions exist as a mixture of oxazolone and macrocycle structures, other primary structure motifs, such as QWFGLM, are shown to exclus

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=narcis______::e27cb03f1fe264b1c55eab9fdb8ab2af
https://www.differ.nl/bibcite/reference/7633

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Cyclic peptide as reference system for b ion structural analysis in the gas phase

Autor: Chen, X., Tirado, M., Steill, J.D., Oomens, J., Polfer, N.C.

Publikováno v: Journal of Mass Spectrometry, 46(10), 1011-1015. Wiley-Blackwell
Journal of Mass Spectrometry, 46, 1011-1015

Infrared multiple photon dissociation spectroscopy and hydrogen/deuterium exchange methods are used to confirm the macrocylic structure of a b(6) peptide fragment by direct comparison with a synthetically made cyclic peptide. The acetylation of the p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::1bb018ef9915f077193cbf4543bfc4c2
https://dare.uva.nl/personal/pure/en/publications/cyclic-peptide-as-reference-system-for-b-ion-structural-analysis-in-the-gas-phase(22f3c172-d750-4b17-995d-bf47ceadc9bb).html

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Hydrogen/deuterium exchange of phenylalanine analogs studied with infrared multiple photon dissociation

Autor: Contreras, C.S., Polfer, N.C., Chung, A.C., Oomens, J., Eyler, J.R.

Publikováno v: International Journal of Mass Spectrometry, 297, 162-169

Phenylalanine analogs were subjected to hydrogen/deuterium exchange (HDX) in both solution and the gas phase, and gas-phase infrared multiple photon dissociation spectra were obtained for each of the species. For sodium cation-attached N-acetylphenyl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::1daef8a7b34f60a4d34e81a7309e0b7d

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Vibrational spectroscopy of bare and solvated ionic complexes of biological relevance

Autor: Polfer, N.C., Oomens, J.

Publikováno v: Mass Spectrometry Reviews, 28, 468-494

The low density of ions in mass spectrometers generally precludes direct infrared (IR) absorption measurements. The IR spectrum of an ion can nonetheless be obtained by inducing photodissociation of the ion using a high-intensity tunable laser The em

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::6f07ada13abc3be69b2b8529358109b7
https://www.differ.nl/bibcite/reference/7083

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Gas-phase infrared spectroscopy of the protonated dipeptides H(+)PheAla and H(+)AlaPhe compared to condensed-phase results

Autor: Dunbar, R.C., Steill, J.D., Polfer, N.C., Oomens, J.

Publikováno v: International Journal of Mass Spectrometry, 283, 77-84

The influence of the physical environment on the structures of biomolecules is considered here for the dipeptide model H(+)AlaPhe cation, by making use of infrared multiple-photon dissociation (IRMPD) spectroscopy complemented by DFT calculations. Th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::9ac95b1e64368cce9f565af54b25b532
https://www.differ.nl/bibcite/reference/7132

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Dimeric Complexes of Tryptophan with M2+ Metal Ions

Autor: Dunbar, R.C., Steill, J.D., Polfer, N.C., Oomens, J.

Publikováno v: Journal of Physical Chemistry A, 113, 845-851

IRMPD spectroscopy using the FELIX free electron laser and a Fourier transform ICR mass spectrometer was used to characterize the structures of electrosprayed dimer complexes M(2+)Trp(2) of tryptophan with a series of eight doubly charged metal ions,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::a4788ec9bed1eeeff932fae3fec9b40b
https://www.differ.nl/bibcite/reference/7117

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Gas-phase IR spectra of intact alpha-helical coiled coil protein complexes

Autor: Pagel, K., Kupser, P., Bierau, F., Polfer, N.C., Steill, J.D., Oomens, J., Meijer, G., Koksch, B., von Helden, G.

Publikováno v: International Journal of Mass Spectrometry, 283, 161-168

Electrospray ionization (ESI) is the softest ionization method that is currently available and it is widely accepted, that ESI generated ions of proteins and protein assemblies at certain conditions retain characteristic aspects of their solution-sta

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::f2be89e620f48f27a3f7cf37100bb935

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