Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 2 |
| Details | binding site for residue BU3 H 301 |
| site_id | AC2 |
| Number of Residues | 2 |
| Details | binding site for residue BU3 H 302 |
| site_id | AC3 |
| Number of Residues | 6 |
| Details | binding site for residue BU3 H 303 |
| Chain | Residue |
| L | PHE98 |
| H | GLU46 |
| H | TRP47 |
| H | ASN60 |
| L | TRP96 |
| L | VAL97 |
| site_id | AC4 |
| Number of Residues | 4 |
| Details | binding site for residue SO4 H 304 |
| Chain | Residue |
| H | GLY42 |
| H | LYS43 |
| H | GLY44 |
| L | TYR87 |
| site_id | AC5 |
| Number of Residues | 4 |
| Details | binding site for residue SO4 H 305 |
| Chain | Residue |
| H | GLN3 |
| H | LEU4 |
| H | GLN5 |
| H | GLU6 |
| site_id | AC6 |
| Number of Residues | 6 |
| Details | binding site for residue SO4 H 306 |
| Chain | Residue |
| H | GLN177 |
| H | SER178 |
| H | HOH403 |
| L | GLY164 |
| L | GLU166 |
| L | GLU189 |
| site_id | AC7 |
| Number of Residues | 3 |
| Details | binding site for residue SO4 H 307 |
| Chain | Residue |
| H | PRO41 |
| H | LEU176 |
| H | TYR182 |
| site_id | AC8 |
| Number of Residues | 3 |
| Details | binding site for residue SO4 H 308 |
| Chain | Residue |
| H | CYS100 |
| H | HOH404 |
| H | HOH407 |
| site_id | AC9 |
| Number of Residues | 4 |
| Details | binding site for residue BU3 H 309 |
| Chain | Residue |
| H | GLN39 |
| H | GLY42 |
| L | GLN38 |
| L | GLY41 |
| site_id | AD1 |
| Number of Residues | 4 |
| Details | binding site for residue BU3 L 301 |
| Chain | Residue |
| H | TYR91 |
| H | GLN105 |
| H | GLY106 |
| L | GLY41 |
| site_id | AD2 |
| Number of Residues | 5 |
| Details | binding site for residue SO4 L 302 |
| Chain | Residue |
| H | SER179 |
| H | HOH405 |
| L | LYS135 |
| L | LYS135 |
| L | HOH408 |
| site_id | AD3 |
| Number of Residues | 3 |
| Details | binding site for residue SO4 L 303 |
| Chain | Residue |
| H | VAL169 |
| L | GLN173 |
| L | SER174 |
| site_id | AD4 |
| Number of Residues | 4 |
| Details | binding site for residue SO4 L 304 |
| Chain | Residue |
| L | GLN37 |
| L | ARG39 |
| L | PRO59 |
| L | PHE62 |
| site_id | AD5 |
| Number of Residues | 4 |
| Details | binding site for residue BU3 L 305 |
| Chain | Residue |
| H | ASN76 |
| L | PRO7 |
| L | HIS8 |
| L | SER9 |
| site_id | AD6 |
| Number of Residues | 1 |
| Details | binding site for residue BU3 L 306 |
Functional Information from PROSITE/UniProt
| site_id | PS00290 |
| Number of Residues | 7 |
| Details | IG_MHC Immunoglobulins and major histocompatibility complex proteins signature. YICNVNH |
| Chain | Residue | Details |
| H | TYR200-HIS206 | |
| L | TYR197-HIS203 | |
