Figure 5. AcoP intrinsic properties compared with several blue (dark blue squares), perturbed-blue (light blue circles), green (green triangles) and red copper (red diamonds) sites.

(A) Peisach-Blumberg diagram correlation between A_// versus the g_// EPR parameters [43] and (B) correlation diagram between the redox potential (Em) and the R_L value. Color codes used for these diagrams are based on spectroscopic features (see Table S1) rather than reported visual colors. Abbreviations used: AcoP_A.f: Acidophile cytochrome c oxidase Partner from Acidithiobacillus ferrooxidans (current study); Ami_M.e: amicyanin from Methylobacterium extorquens [59]; Aur C_C.a and Aur D_C.a: auracyanin C and D from Chloroflexus aurantiacus [48]; Azu-1_ M.sp and Azu-2_ M.sp: azurin isoform 1 and 2 from Methylomonas sp. [59]; Azu_P.a: azurin from Pseudomonas aeruginosa [55], [60]; CBP_Cu: cucumber basic protein from Cucumber [19]; Lpc_S.c: lipocyanin from Streptomyces coelicolor [61]; Nir_A.c: Nitrite reductase from Achromobacter cycloclastes [19]; Nitroso_N.e: nitrosocyanin from Nitrosomonas europaea [62]; Paz_Ac: pseudoazurin from Achromobacter cycloclastes [60]; Plc_Sp: plastocyanin from spinach [60]; Rus_ A.f: rusticyanin from Acidithiobacillus ferrooxidans (current study) [34]; Ste_Cu: stellacyanin from Cucumber [63], [64].