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 | 2 |
| Details | BINDING SITE FOR RESIDUE SO4 A 126 |
| Chain | Residue |
| A | HIS122 |
| A | ALA123 |
| site_id | AC2 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE SO4 A 127 |
| Chain | Residue |
| A | HIS100 |
| A | HIS100 |
| A | ARG113 |
| A | LEU115 |
| site_id | AC3 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE SO4 A 128 |
| Chain | Residue |
| A | ASN57 |
| A | GLY105 |
| A | ARG45 |
| A | GLU53 |
| A | PHE54 |
| site_id | AC4 |
| Number of Residues | 11 |
| Details | BINDING SITE FOR RESIDUE ASD A 129 |
| Chain | Residue |
| A | ASN2 |
| A | TYR14 |
| A | ASN38 |
| A | SER58 |
| A | PHE86 |
| A | VAL95 |
| A | ASN99 |
| A | MET112 |
| A | PHE116 |
| A | HOH191 |
| A | HOH192 |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 1 |
| Details | ACT_SITE: Proton donor |
| Chain | Residue | Details |
| A | TYR14 | |
| Chain | Residue | Details |
| A | ASN38 | |
| site_id | SWS_FT_FI3 |
| Number of Residues | 1 |
| Details | BINDING: |
| Chain | Residue | Details |
| A | ASN99 | |
