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. 2012 Nov 5;7(11):e45864. doi: 10.1371/journal.pone.0045864

Figure 3. Model of actin structures based on the Förster resonance energy transfer (FRET) states.

Figure 3

Using the FRET efficiencies, we surmise that the g and fg states in G-actin and F-actin are analogous. The f state appears only after polymerization and is, therefore, a specific state of F-actin.