Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE ACY A 201 |
| Chain | Residue |
| A | DLE4 |
| A | ALA5 |
| A | ETA16 |
| B | ETA16 |
| site_id | AC2 |
| Number of Residues | 1 |
| Details | BINDING SITE FOR RESIDUE ACY A 205 |
| site_id | AC3 |
| Number of Residues | 3 |
| Details | BINDING SITE FOR RESIDUE ACY B 202 |
| Chain | Residue |
| B | DLE4 |
| B | ALA5 |
| B | ACY203 |
| site_id | AC4 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE ACY B 203 |
| Chain | Residue |
| B | ALA5 |
| B | DVA6 |
| B | TRP11 |
| B | ACY202 |
| A | TRP11 |
| site_id | AC5 |
| Number of Residues | 2 |
| Details | BINDING SITE FOR RESIDUE ACY B 206 |
| site_id | AC6 |
| Number of Residues | 30 |
| Details | BINDING SITE FOR CHAIN A OF GRAMICIDIN A |
| Chain | Residue |
| A | ACY201 |
| A | ACY201 |
| A | ACY205 |
| A | HOH2005 |
| A | HOH2006 |
| A | HOH2010 |
| A | HOH2011 |
| A | HOH2013 |
| B | GLY2 |
| B | GLY2 |
| B | ALA3 |
| B | ALA3 |
| B | DLE4 |
| B | ALA5 |
| B | DVA6 |
| B | VAL7 |
| B | DVA8 |
| B | TRP9 |
| B | TRP9 |
| B | DLE10 |
| B | TRP11 |
| B | DLE12 |
| B | DLE12 |
| B | TRP13 |
| B | DLE14 |
| B | TRP15 |
| B | TRP15 |
| B | ETA16 |
| B | ACY203 |
| B | ACY206 |
| site_id | AC7 |
| Number of Residues | 26 |
| Details | BINDING SITE FOR CHAIN B OF GRAMICIDIN A |
| Chain | Residue |
| A | GLY2 |
| A | GLY2 |
| A | ALA3 |
| A | ALA3 |
| A | ALA3 |
| A | DLE4 |
| A | ALA5 |
| A | DVA6 |
| A | VAL7 |
| A | DVA8 |
| A | TRP9 |
| A | TRP9 |
| A | DLE10 |
| A | TRP11 |
| A | DLE12 |
| A | TRP13 |
| A | DLE14 |
| A | TRP15 |
| A | ETA16 |
| A | ACY201 |
| A | HOH2011 |
| B | ACY202 |
| B | ACY203 |
| B | ACY203 |
| B | ACY206 |
| B | HOH2006 |
