1. Real-time study of the modification of the peptide bond by atomic calcium.
- Author
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Kummer K, Vyalikh DV, Blüher A, Sivkov V, Maslyuk VV, Bredow T, Mertig I, Mertig M, and Molodtsov SL
- Subjects
- Bacillus, Bacterial Proteins metabolism, Calcium metabolism, Kinetics, Models, Molecular, Molecular Conformation, Photoelectron Spectroscopy, Bacterial Proteins chemistry, Calcium chemistry, Peptides chemistry
- Abstract
Strong chemical interaction between bacterial surface protein layers and calcium atoms deposited in situ on top was revealed by means of photoemission spectroscopy. The interaction appears to mainly happen at the oxygen site of the peptide bonds and involves a large charge transfer from Ca 4s states into the peptide backbone. Chemical kinetics of this reaction was characterized using time-dependent valence band photoemission, and the reaction rate constant was determined., (© 2011 American Chemical Society)
- Published
- 2011
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