Table 1.
Cu—ligand bond lengths in selected blue copper proteins.
| P. aeruginosa azurin | pH | Cu-N3 (His46)a | Cu-S (Cys112)a | Cu-N3 (His117a | Cu-S (Met121)a | Cu-O (Gly45)a | Res (Å) | PDB ID |
|---|---|---|---|---|---|---|---|---|
| Cu(II) | 5.5 | 2.08(6)a | 2.24(5) | 2.01(7) | 3.15(7) | 2.97(10) | 1.9 | 4AZU [21] |
| Cu(I) | 5.5 | 2.14(9) | 2.29(2) | 2.10(9) | 3.25(7) | 3.02(8) | 2.0 | 1E5Y [22] |
| Cu(II) | 9.0 | 2.06(6) | 2.26(4) | 2.03(4) | 3.12(7) | 2.94(11) | 1.9 | 5AZU [21] |
| Cu(I) | 9.0 | 2.20(11) | 2.30(23) | 2.21(12) | 3.16(9) | 3.11(11) | 2.0 | 1E5Z [22] |
| T. ferrooxidans rusticyanin | Cu-N3 (H85) | Cu-S (Cys138) | Cu-N3 (H143) | Cu-S (Met148) | -- | Res (Å) | PDB ID | |
| Cu(II) | 4.6 | 2.04 | 2.26 | 1.89 | 2.88 | -- | 1.9 | 1RCY [23] |
| Cu(I) | 4.6 | 2.22 | 2.25 | 1.96 | 2.75 | -- | 2.0 | 1A3Z [22] |
| P. nigra plastocyanin | Cu-N3 (His37) | Cu-S (Cys84) | Cu-N3 (His87) | Cu-S (Met92) | -- | Res (Å) | PDB ID | |
| Cu(II) | 6.0 | 1.91 | 2.07 | 2.06 | 2.82 | -- | 1.33 | 1PLC [24] |
| Cu(I) | 7.0 | 2.13 | 2.17 | 2.39 | 2.87 | -- | 1.80 | 5PCY [25] |
| P. denitrificans amicyanin | Cu-N3 (His53) | Cu-S (Cys92) | Cu-N3 (His95) | Cu-S (Met98) | -- | Res (Å) | PDB ID | |
| Cu(II) | 6.0 | 1.95 | 2.11 | 2.03 | 2.90 | -- | 1.31 | 1AAC [26] |
| Cu(I) | 7.7 | 1.95 | 2.12 | Unbound | 2.91 | -- | 1.30 | 2RAC [27] |
| C. sativus cucumber basic protein | Cu-N3 (His39) | Cu-S (Cys79) | Cu-N3 (His84) | Cu-S (Met89) | -- | Res (Å) | PDB ID | |
| Cu(II) | 6.0 | 1.93 | 2.16 | 1.95 | 2.61 | -- | 1.80 | 2CBP [28] |
| C. sativus stellacyanin | Cu-N3 (His46) | Cu-S (Cys89) | Cu-N3 (His94) | -- | Cu-O (Gln89) | Res (Å) | PDB ID | |
| Cu(II) | 7.0 | 1.96 | 2.18 | 2.04 | -- | 2.21 | 1.60 | 1JER [29] |
a
Average of distances for four molecules in the asymmetric unit. Errors are one standard deviation.