Dynamic cross correlation maps for E. coli pTsr binding to (A) (R)-DHMA and (B) (S)-DHMA using Cα atom coordinates. The color range to the right of each map indicates the degree of correlation (or anticorrelation), with blue indicating fully correlated motions and red indicating fully anticorrelated motions. The orange, cyan, pink, and green blocks highlight residue motifs belonging to α-helix 1, α-helix 2, α-helix 3, and α-helix 4 of pTsr, respectively. The region encapsulated by green dotted lines denotes the key difference in correlated motions between pTsr bound to (R)-DHMA versus (S)-DHMA. To see this figure in color, go online.