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 | AC1 |
| Number of Residues | 5 |
| Details | binding site for residue MG A 201 |
| Chain | Residue |
| A | HOH308 |
| A | HOH351 |
| A | HOH371 |
| A | HOH396 |
| A | HOH421 |
| site_id | AC2 |
| Number of Residues | 11 |
| Details | binding site for residue DNX A 202 |
| Chain | Residue |
| A | LEU61 |
| A | PHE86 |
| A | ASP103 |
| A | MET116 |
| A | ALA118 |
| A | HOH360 |
| A | HOH367 |
| A | TYR16 |
| A | ASN40 |
| A | PHE56 |
| A | TYR57 |
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 | ASN40 | |
| Chain | Residue | Details |
| A | ASP103 | |
Catalytic Information from CSA
| site_id | MCSA1 |
| Number of Residues | 4 |
| Details | M-CSA 349 |
| Chain | Residue | Details |
| A | TYR16 | proton acceptor, proton donor |
| A | ASN40 | proton acceptor, proton donor |
| A | ASP100 | electrostatic stabiliser |
| A | ASP103 | electrostatic stabiliser |
