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. 2012 Oct 10;109(43):17348–17353. doi: 10.1073/pnas.1204251109

Fig. 1.

Fig. 1.

(A) The CuA site from Thermus thermophilus ba3 oxidase (rendered from PDB ID 2CUA) (35). (B) Double-well potential describing the ground-state symmetry as a function of the Cu—Cu distance, including the calculated σ*u (blue) and πu (red) molecular orbitals. The large splitting between both states yields an adiabatic surface along the coordinate.