Structure–function insights into direct lipid transfer between membranes by Mmm1–Mdm12 of ERMES by Kawano, S, Tamura, Y, Kojima, R, Bala, S, Asai, E, Michel, A, Kornmann, B, Riezman, I, Riezman, H, Sakae, Y, Okamoto, Y, Endo, T