Abstract
We present the implementation of an approach to simulate the two-dimensional sum frequency generation response functions of systems with numerous coupled chromophores using a quantum-classical simulation scheme that was previously applied successfully to simulate two-dimensional infrared spectra. We apply the simulation to the amide I band of a mechanosensitive channel protein. By examining the signal generated from different segments of the protein, we find that the overall signal is impossible to interpret without the aid of simulations due to the interference of the response generated on different segments of the protein. We do not find significant cross-peaks in the spectra, even when the waiting time is increased. The spectra are thus not sensitive to coupling between different structural elements. Despite this, we conclude that two-dimensional sum frequency generation spectroscopy will be a powerful tool to investigate membrane bound proteins.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
