Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0004769 | molecular_function | steroid delta-isomerase activity |
| A | 0008202 | biological_process | steroid metabolic process |
| A | 0016853 | molecular_function | isomerase activity |
Functional Information from PDB Data
| site_id | A |
| Number of Residues | 5 |
| Details | ACTIVE SITE. |
| Chain | Residue |
| A | TYR16 |
| A | TYR32 |
| A | ASP40 |
| A | TYR57 |
| A | ASP103 |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 1 |
| Details | ACT_SITE: Proton donor |
| Chain | Residue | Details |
| A | TYR16 | |
| site_id | SWS_FT_FI2 |
| Number of Residues | 1 |
| Details | ACT_SITE: Proton acceptor |
| Chain | Residue | Details |
| A | ASP40 | |
| Chain | Residue | Details |
| A | ASP103 | |
Catalytic Information from CSA
| site_id | CSA1 |
| Number of Residues | 5 |
| Details | Annotated By Reference To The Literature 1e3v |
| Chain | Residue | Details |
| A | ASP103 | |
| A | ASP40 | |
| A | TYR32 | |
| A | TYR16 | |
| A | TYR57 | |
| site_id | CSA2 |
| Number of Residues | 3 |
| Details | Annotated By Reference To The Literature 1e3v |
| Chain | Residue | Details |
| A | ASP103 | |
| A | ASP40 | |
| A | TYR16 | |
| site_id | MCSA1 |
| Number of Residues | 4 |
| Details | M-CSA 349 |
| Chain | Residue | Details |
| A | TYR16 | proton acceptor, proton donor |
| A | ASP40 | proton acceptor, proton donor |
| A | ASP100 | electrostatic stabiliser |
| A | ASP103 | electrostatic stabiliser |
