Perturbed structural dynamics underlie inhibition and altered efflux of the multidrug resistance pump AcrB by Reading, E, Ahdash, Z, Fais, C, Ricci, V, Wang-Kan, X, Grimsey, E, Stone, J, Malloci, G, Lau, AM, Findlay, H, Konijnenberg, A, Booth, PJ, Ruggerone, P, Vargiu, AV, Piddock, LJV, Politis, A