| 1Y21 |
| HET ID | Chain ID |
Residue N | Number of atoms | Ligand name | |
|---|---|---|---|---|---|
| lig 1 |
| A
| 296 | 2 | NITRIC OXIDE |
| lig 2 |
| A
| 298 | 2 | NITRIC OXIDE |
| lig 3 |
| A
| 300 | 43 | PROTOPORPHYRIN IX CONTAINING FE |
| lig 4 |
| A
| 301 | 8 | 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL |