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MreB filament structures in solution via multiple-angle light scattering. (A) Time-dependent exponent a was obtained from power-law fits of scattering spectra I(t; q) ∼ q−a(t). The exponent a for 2 μM MreB is shown 1 min after initiating assembly. (B) Time-dependent exponent a(t) for solutions of ATP-MreB and GTP-MreB. Symbols correspond to 0.5 μM GTP-MreB (▪), 0.5 μM ATP-MreB (□), 4 μM GTP-MreB (•), and 4 μM ATP-MreB (○).
