previously on DOPE/fusion peptide systems using Martini 173 , we could not simulate a stable array of 2x2x2 unit cells of the pure MO 𝑄 𝐼𝐼 𝐷 mesophases neither through selfassembly nor by artificially translating them before conducting dynamics, which may require more advanced system building and relaxation. For studies of the cubic phase as a host system for drugs and macromolecules, simulation of a single unit cell of the cubic phase with periodic boundaries could be sufficient.