Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0004517 | molecular_function | nitric-oxide synthase activity |
| A | 0006809 | biological_process | nitric oxide biosynthetic process |
| A | 0020037 | molecular_function | heme binding |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE ZN A 950 |
| Chain | Residue |
| A | CYS326 |
| A | CYS326 |
| A | CYS331 |
| A | CYS331 |
| site_id | AC2 |
| Number of Residues | 18 |
| Details | BINDING SITE FOR RESIDUE HEM A 900 |
| Chain | Residue |
| A | TRP409 |
| A | ARG414 |
| A | CYS415 |
| A | VAL416 |
| A | SER457 |
| A | PHE584 |
| A | SER585 |
| A | TRP587 |
| A | GLU592 |
| A | TRP678 |
| A | TYR706 |
| A | H4B901 |
| A | 3AR902 |
| A | HOH8 |
| A | HOH23 |
| A | HOH82 |
| A | HOH85 |
| A | HOH200 |
| site_id | AC3 |
| Number of Residues | 15 |
| Details | BINDING SITE FOR RESIDUE H4B A 901 |
| Chain | Residue |
| A | HOH5 |
| A | HOH12 |
| A | HOH22 |
| A | HOH23 |
| A | HOH114 |
| A | SER334 |
| A | ARG596 |
| A | TRP676 |
| A | VAL677 |
| A | TRP678 |
| A | PHE691 |
| A | HIS692 |
| A | GLN693 |
| A | GLU694 |
| A | HEM900 |
| site_id | AC4 |
| Number of Residues | 15 |
| Details | BINDING SITE FOR RESIDUE 3AR A 902 |
| Chain | Residue |
| A | HOH48 |
| A | HOH82 |
| A | HOH126 |
| A | GLN478 |
| A | TYR562 |
| A | PRO565 |
| A | VAL567 |
| A | PHE584 |
| A | SER585 |
| A | GLY586 |
| A | TRP587 |
| A | TYR588 |
| A | GLU592 |
| A | ASP597 |
| A | HEM900 |
Functional Information from PROSITE/UniProt
| site_id | PS60001 |
| Number of Residues | 8 |
| Details | NOS Nitric oxide synthase (NOS) signature. RCVGRIqW |
| Chain | Residue | Details |
| A | ARG414-TRP421 | |
Functional Information from SwissProt/UniProt
| Chain | Residue | Details |
| A | SER334 | |
| A | GLN478 | |
| A | TRP587 | |
| A | TYR588 | |
| A | GLU592 | |
| A | VAL677 | |
| A | TRP678 | |
| A | PHE691 | |
| A | TYR706 | |
| Chain | Residue | Details |
| A | CYS415 | |
