Table 1.
Mutant | Fastest pathway | Residence time [ms] | Rate [s−1] |
---|---|---|---|
WT (inter) | MnC – dimer(W96/W274)–MnN | 8.10 | 123 |
WT (intra) | MnC’–Y284–Y281–W102–MnN | 735 | 1.29·10−4 |
W96F | MnC–W274–W348–MnN | 32.8 | 30.5 |
W96Y | MnC–W274–Y96–MnN | 8.37 | 119 |
W274F | MnC–Y320–W171–W96–MnN | 52.9 | 18.9 |
W274Y | MnC–Y274–W96–MnN | 9.27 | 108 |
W96F/W274F | MnC–W171–W348–MnN | 98.3 | 10.2 |
W96Y/W274Y | MnC–Y274–Y96–MnN | 9.27 | 108 |
Inter refers to hole hopping between neighboring protein subunits, and intra refers to hole hopping through the interior of a single subunit. MnC refers to the C-terminal Mn ion, assumed to be the hole donor, and MnN refers to the N-terminal one, the presumed hole acceptor. Please note that these Mn ions are on neighboring subunits of the protein. MnC’ is the C-terminal Mn on the same subunit as the N-terminal Mn.