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. Author manuscript; available in PMC: 2018 Oct 1.
Published in final edited form as: J Photochem Photobiol B. 2017 Aug 24;175:109–124. doi: 10.1016/j.jphotobiol.2017.08.033

Figure 6.

Figure 6

Simulations (N=100) of coherent energy transport (1 ns each, 500 evolutions × 1999 fs timesteps, with εr = 8.41 and 50–300 cm−1 dephasing) due to single-photon excitations of aromatic amino acid chromophore lattices in linear polymers of tubulin dimers. Initial photoexcitation impinges on tubulin 0 at Trp βW-346, which is closest to the protofilament surface. Final propagation distances for all 100 simulations have been tabulated and are shown on the vertical axis. The tubulin dimer on which the exciton finally lands after 1 ns is plotted on the horizontal axis. (A) Exciton propagation in tryptophan-only lattices of linear tubulin polymers. (B) Exciton propagation in tryptophan and tyrosine lattices of linear tubulin polymers.