Fig. 7. Average site energies (top, eV) and average electronic couplings (bottom, in meV) for PhrB WT and its mutants Y391F, Y391A and Y391Wp/d. Error bars denote the corresponding standard deviation. The different symbols in each site energies panel from left to right represent values for FAD (blue) and the residues A (black), B (red) and C (green). Electronic coupling HDA symbols (purple) are positioned between the two sites considered as donor and acceptor.
