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  Soft X-ray induced decomposition of phenylalanine and tyrosine:  a comparative study

Zubavichus, Y., Zharnikov, M., Shaporenko, A., Fuchs, O., Weinhardt, L., Heske, C., et al. (2004). Soft X-ray induced decomposition of phenylalanine and tyrosine:  a comparative study. The Journal of Physical Chemistry A, 108(20), 4557-4565. doi:10.1021/jp049376f.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0001-D601-C Version Permalink: https://hdl.handle.net/21.11116/0000-000A-0997-2
Genre: Journal Article

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JPhysChemA_108_2004_4557.pdf (Any fulltext), 274KB
 
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https://pubs.acs.org/doi/pdf/10.1021/jp049376f (Any fulltext)
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 Creators:
Zubavichus, Yan, Author
Zharnikov, Michael, Author
Shaporenko, Andrey, Author
Fuchs, Oliver, Author
Weinhardt, Lothar, Author
Heske, Clemens, Author
Umbach, Eberhard, Author
Denlinger, Jonathan D., Author
Grunze, Michael1, Author           
Affiliations:
1Cellular Biophysics, Max Planck Institute for Medical Research, Max Planck Society, ou_2364731              

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 Abstract: The pristine state and soft X-ray induced decomposition of two aromatic amino acids, viz. phenylalanine and tyrosine, have been studied by means of XPS and NEXAFS. The spectroscopic data on radiation induced decomposition have been supplemented by a mass spectral analysis of the desorbed species. Despite very similar chemical structures, the two amino acids show a dramatically different behavior toward ionizing radiation:  phenylalanine degrades very quickly whereas tyrosine shows a prominent stability against radiation damage. Reasons for this difference are discussed in relation to radical-mediated reactions responsible for the decomposition.

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Language(s): eng - English
 Dates: 2004-02-112004-03-252004-04-27
 Publication Status: Issued
 Pages: 9
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/jp049376f
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Title: The Journal of Physical Chemistry A
  Other : J. Phys. Chem. A
Source Genre: Journal
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Publ. Info: Columbus, OH : American Chemical Society
Pages: - Volume / Issue: 108 (20) Sequence Number: - Start / End Page: 4557 - 4565 Identifier: ISSN: 1089-5639
CoNE: https://pure.mpg.de/cone/journals/resource/954926947766_4