Fig. 6. MD simulations of the Aβ parallel C-sheet tetramers in SDS micelles.

a Initial structure of Aβ42 tetramer. b Initial structure of Aβ40 tetramer. c Aβ42 tetramer at 834.2 ns of a simulation. d Aβ40 tetramer at 994.2 ns. The SDS micelles are shown in surface representation with headgroups in yellow and hydrocarbon tails in grey. Aβ molecules are shown in cartoon representation with residues 1 to 29 in cyan and residues 30-42/40 in red.