Fig. 5. Comparison of the catalytically important amino acids in CpI derivatives. Stick models of the potential proton transfer pathway (A) and the environment of the 2FeH-subcluster (B) of CpIADT (carbon atoms in marine) superposed to stick models of CpIPDT (magenta), CpIODT (green) and CpISDT (yellow). Dashed lines indicate potential proton transfer interactions or potential interactions of 2FeH with the protein as listed in Table S4.† Numbering of amino acids as in the structure of native CpI.
