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Updated: Jun 23, 2026

Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy
Published on: June 27, 2014
Charge transport in proteins probed by resonant photoemission
D V Vyalikh1, V V Maslyuk, A Blüher
1Institut für Festkörperphysik, Technische Universität Dresden, D-01062 Dresden, Germany.
Abstract:
The degrees of charge localization in the highest occupied and lowest unoccupied molecular orbitals (HOMO and LUMO) of the bacterial surface layer protein of Bacillus sphaericus NCTC 9602 were studied by resonant photoemission. In agreement with a charge transport hopping mechanism that involves torsional motions of the peptide backbone, the lifetime of electrons excited into the LUMO was found to be approximately 100 fs.
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