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. 2019 Aug 7;5(8):eaaw4988. doi: 10.1126/sciadv.aaw4988

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Copyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY).

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Fig. 1 — (A) The fluorophores of mCerulean3 and cpVenus^cd are depicted as stick structures in red. The calcium ions of the minimal TnC domain are shown as magenta spheres. The disordered linker connecting the original N and C termini of Venus is shown as a dashed line. (B) The distance between the centers of mass of the two fluorophores of Twitch-2B is depicted as a dashed line. (C) The transition dipole moments of the two fluorophores of Twitch-2B as obtained from (15) are depicted as arrows.