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Amino acid residues affected by metal/peptide interactions. Metal-binding regions are also signed in Scheme 1.
| Binding Region | I | II | III | IV | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fe (II) | S1 | K3 | P4 | - | M6 | - | - | K11 | F12 | D13 | S15 | L17 | T22 | P27 | L28 | P29 | S30 | T33 | I34 | - | - | A40 | S43 |
| Fe (III) | S1 | K3 | P4 | - | M6 | I9 | - | - | F12 | D13 | S15 | - | T22 | - | L28 | - | - | T33 | I34 | Q35 | E36 | A40 | - |
| Al (III) | - | - | P4 | D5 | M6 | I9 | E10 | - | F12 | D13 | - | - | - | - | L28 | - | - | - | I34 | Q35 | E36 | - | - |
