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(a) Dependence of membrane elastic energy on the orientation angles of three free peptide trimers separated by 10 nm. The minimum of the elastic energy (marked by red circle) is at θ1 = 5π/6, θ2 = π/6, θ3 = −π/2, and at θ1 = −π/6, θ2 = −5π/6, θ3 = π/2. (b) Top view of optimal configurations of the peptides.
