Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE K A 17 |
| Chain | Residue |
| A | TRP13 |
| A | DLE14 |
| A | TRP15 |
| A | ETA16 |
| site_id | AC2 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE SCN A 18 |
| Chain | Residue |
| A | DLE4 |
| A | ALA5 |
| B | TRP11 |
| B | DLE12 |
| B | DLE14 |
| site_id | AC3 |
| Number of Residues | 2 |
| Details | BINDING SITE FOR RESIDUE SCN A 19 |
| site_id | AC4 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE K B 17 |
| Chain | Residue |
| A | TRP9 |
| A | DLE10 |
| B | DVA6 |
| B | VAL7 |
| B | DVA8 |
| site_id | AC5 |
| Number of Residues | 1 |
| Details | BINDING SITE FOR RESIDUE SCN B 18 |
| site_id | AC6 |
| Number of Residues | 1 |
| Details | BINDING SITE FOR RESIDUE K C 17 |
| site_id | AC7 |
| Number of Residues | 8 |
| Details | BINDING SITE FOR RESIDUE SCN C 18 |
| Chain | Residue |
| C | ALA3 |
| C | DLE4 |
| C | ALA5 |
| C | DVA6 |
| D | TRP9 |
| D | TRP11 |
| D | DLE12 |
| D | DLE14 |
| site_id | AC8 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE K D 17 |
| Chain | Residue |
| C | TRP9 |
| C | TRP11 |
| D | ALA5 |
| D | DVA6 |
| D | VAL7 |
| D | DVA8 |
| site_id | AC9 |
| Number of Residues | 32 |
| Details | BINDING SITE FOR CHAIN A OF GRAMICIDIN A |
| Chain | Residue |
| A | K17 |
| A | K17 |
| A | SCN18 |
| A | SCN19 |
| B | GLY2 |
| B | GLY2 |
| B | ALA3 |
| B | DLE4 |
| B | ALA5 |
| B | DVA6 |
| B | VAL7 |
| B | DVA8 |
| B | TRP9 |
| B | DLE10 |
| B | TRP11 |
| B | DLE12 |
| B | TRP13 |
| B | DLE14 |
| B | TRP15 |
| B | ETA16 |
| B | K17 |
| B | SCN18 |
| C | DLE4 |
| C | VAL7 |
| C | TRP11 |
| C | DLE12 |
| C | DLE14 |
| C | TRP15 |
| D | TRP9 |
| D | DLE10 |
| D | TRP11 |
| D | TRP15 |
| site_id | BC1 |
| Number of Residues | 35 |
| Details | BINDING SITE FOR CHAIN B OF GRAMICIDIN A |
| Chain | Residue |
| A | GLY2 |
| A | GLY2 |
| A | ALA3 |
| A | DLE4 |
| A | ALA5 |
| A | DVA6 |
| A | VAL7 |
| A | DVA8 |
| A | TRP9 |
| A | DLE10 |
| A | TRP11 |
| A | DLE12 |
| A | TRP13 |
| A | DLE14 |
| A | TRP15 |
| A | ETA16 |
| A | ETA16 |
| A | K17 |
| A | SCN18 |
| B | K17 |
| B | SCN18 |
| C | DVA6 |
| C | VAL7 |
| C | TRP11 |
| C | DLE12 |
| C | TRP15 |
| D | DLE4 |
| D | DVA6 |
| D | TRP9 |
| D | DLE10 |
| D | TRP11 |
| D | TRP11 |
| D | TRP13 |
| D | DLE14 |
| D | TRP15 |
| site_id | BC2 |
| Number of Residues | 32 |
| Details | BINDING SITE FOR CHAIN C OF GRAMICIDIN A |
| Chain | Residue |
| A | DLE4 |
| A | VAL7 |
| A | TRP11 |
| A | TRP13 |
| B | DLE4 |
| B | TRP9 |
| B | TRP11 |
| B | TRP13 |
| C | K17 |
| C | K17 |
| C | SCN18 |
| D | GLY2 |
| D | GLY2 |
| D | ALA3 |
| D | DLE4 |
| D | ALA5 |
| D | DVA6 |
| D | VAL7 |
| D | DVA8 |
| D | TRP9 |
| D | DLE10 |
| D | TRP11 |
| D | DLE12 |
| D | TRP13 |
| D | TRP13 |
| D | DLE14 |
| D | DLE14 |
| D | TRP15 |
| D | TRP15 |
| D | ETA16 |
| D | ETA16 |
| D | K17 |
| site_id | BC3 |
| Number of Residues | 33 |
| Details | BINDING SITE FOR CHAIN D OF GRAMICIDIN A |
| Chain | Residue |
| A | DLE4 |
| A | DVA6 |
| A | TRP9 |
| A | TRP11 |
| B | DLE4 |
| B | DVA6 |
| B | DVA8 |
| B | TRP9 |
| B | DLE10 |
| B | TRP11 |
| B | TRP13 |
| B | DLE14 |
| B | DLE14 |
| C | GLY2 |
| C | GLY2 |
| C | ALA3 |
| C | DLE4 |
| C | ALA5 |
| C | DVA6 |
| C | VAL7 |
| C | DVA8 |
| C | TRP9 |
| C | DLE10 |
| C | TRP11 |
| C | DLE12 |
| C | TRP13 |
| C | DLE14 |
| C | TRP15 |
| C | TRP15 |
| C | ETA16 |
| C | K17 |
| C | SCN18 |
| D | K17 |
