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Time-resolved Fourier transform infrared spectroscopy (FT-IR) has been proven to be an excellent method with important applications in bioscience. In particular, it is possible to monitor the temporal evolution of the reaction mechanism of complex machineries as membrane proteins, where other techniques encounter significant experimental difficulties. Here, we summarize the classical principles and...
Plant phototropins (phot) exhibit a peculiar architecture such that two LOV domains (LOV1 and LOV2) are present in a tandem-like arrangement (N- terminal part of the protein), followed by a C-terminal serine/threonine kinase domain that catalyzes the light-driven autophosphorylation of phot ([Huala et al 1997]). The three-dimensional structure of the LOV1 domain from the green algae Chlamydomonas reinhardtii...
Infrared (IR) absorption spectroscopy has long been an established tool for chemists to identify small molecules by their characteristic vibrational “fingerprint.” Using pump–probe techniques, IR spectroscopy with time resolution in the femtosecond range is routinely achieved these days. This time range is particularly relevant for conformational changes that are associated with the physiological...
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