Structures of the archaerhodopsin-3 transporter reveal that disordering of internal water networks underpins receptor sensitization by Bada Juarez, JF, Judge, PJ, Adam, S, Axford, D, Vinals, J, Birch, J, Kwan, TOC, Hoi, KK, Yen, H-Y, Vial, A, Milhiet, P-E, Robinson, CV, Schapiro, I, Moraes, I, Watts, A