Dependence of bilayer line tension, 2γ, on equilibrium thickness mismatch δ for nonzero-spontaneous curvature. (A) A firm raft. Jr = 0 for curves 1, 2, and 3; Js = 0 (curve 1), Js = −0.1 nm−1 (curve 2), Js = +0.1 nm−1 (curve 3). Jr = 0.1 nm−1 for curves 4, 5, and 6; Js = 0.1 nm−1 (curve 4), Js = 0 (curve 5), Js = −0.1 nm−1 (curve 6). Elastic moduli for the raft are Br = 40 kT and Kr = 10 kT/nm2, δ = 5 Å; all other parameters are as in Fig. 4. (B) A flexible raft. Jr = 0, Js = 0 for curve 1; Js–Jr = ±0.2 nm−1 for curve 2. The elastic moduli are Bs = Br = 10 kT and Ks = Kr = 10 kT/nm2.