| Metal site id | Bound amino acids | Bound ligands IDs |
|---|---|---|
| 4IBR-CA-1 | E2 | GLU A.36 HOH A.401 HOH A.404 |
| 4OP8-CA-1 | E2 | GLU A.36 HOH A.401 HOH A.403 |
| 4OPR-CA-1 | E2 | GLU A.36 HOH A.401 HOH A.403 |
| 4OPZ-CA-1 | E2 | GLU A.36 HOH A.404 HOH A.405 |
| 4OQ0-CA-1 | E2 | GLU A.36 HOH A.404 HOH A.405 |
| 4OQH-CA-1 | E2 | GLU A.36 HOH A.430 HOH A.431 |
| 4OQI-CA-1 | E2 | GLU A.36 HOH A.401 HOH A.402 |