3QNX
Orthorhombic form of human IgA1 Fab fragment, sharing same Fv as IgG
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE GOL A 220 |
| Chain | Residue |
| A | LYS195 |
| A | ARG216 |
| A | HOH269 |
| B | SER90 |
| B | ASP91 |
| site_id | AC2 |
| Number of Residues | 7 |
| Details | BINDING SITE FOR RESIDUE GOL A 221 |
| Chain | Residue |
| A | VAL210 |
| B | ALA193 |
| B | HOH233 |
| A | LEU206 |
| A | SER207 |
| A | SER208 |
| A | PRO209 |
| site_id | AC3 |
| Number of Residues | 7 |
| Details | BINDING SITE FOR RESIDUE GOL B 222 |
| Chain | Residue |
| B | ARG38 |
| B | GLN39 |
| B | ALA40 |
| B | LYS43 |
| B | GLY44 |
| B | GLU46 |
| B | HOH286 |
Functional Information from PROSITE/UniProt
| site_id | PS00290 |
| Number of Residues | 7 |
| Details | IG_MHC Immunoglobulins and major histocompatibility complex proteins signature. YACEVTH |
| Chain | Residue | Details |
| A | TYR197-HIS203 |
