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 | 6 |
| Details | binding site for residue MG A 201 |
| Chain | Residue |
| A | HOH308 |
| A | HOH309 |
| A | HOH326 |
| A | HOH426 |
| A | HOH431 |
| A | HOH438 |
| site_id | AC2 |
| Number of Residues | 7 |
| Details | binding site for residue MG A 202 |
| Chain | Residue |
| A | HOH311 |
| A | HOH325 |
| A | HOH384 |
| A | HOH408 |
| A | GLU18 |
| A | ASP21 |
| A | HOH302 |
| site_id | AC3 |
| Number of Residues | 9 |
| Details | binding site for residue DNX A 203 |
| Chain | Residue |
| A | TYR16 |
| A | ASN40 |
| A | LEU61 |
| A | PHE86 |
| A | MET90 |
| A | ASN93 |
| A | LEU99 |
| A | ASN103 |
| A | MET116 |
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 | ASN103 | |
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 | ASN103 | electrostatic stabiliser |
