Figure 5 | Scientific Reports

Figure 5

From: Probing the existence of non-thermal Terahertz radiation induced changes of the protein solution structure

Figure 5

THz-SAXS measurements on microtubules. (a) SAXS profiles from exposed and non-exposed samples. Data have been collected in two independent beamtime sessions using different THz power densities. Dashed lines: GNOM fits. (b) Approximate structural models using dummy beads to compute the SAXS signal for singlet and doublets build using the ATSAS program BODIES (beads do not represent tubulin subunits). (c) Pair-distance distribution function p(r) computed from the SAXS curves displayed in (a) determined with GNOM. Characteristic features due to the structure of singlet and doublet are marked by a dot (singlet) and a diamond (doublet). (d) Effect of THz-exposure on the effective singlet and doublet diameter. The dashed line separates different sample preparation, e.g., different protein concentrations. Different symbols mark different MT batches.

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