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 |
| B | 0004769 | molecular_function | steroid delta-isomerase activity |
| B | 0008202 | biological_process | steroid metabolic process |
| B | 0016853 | molecular_function | isomerase activity |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 8 |
| Details | binding site for residue EQU A 201 |
| Chain | Residue |
| A | TYR16 |
| A | ASN40 |
| A | PHE86 |
| A | MET90 |
| A | LEU99 |
| A | ASP103 |
| A | TRP120 |
| B | ASN93 |
| site_id | AC2 |
| Number of Residues | 5 |
| Details | binding site for residue SO4 A 202 |
| Chain | Residue |
| A | THR115 |
| A | GLN117 |
| A | HOH315 |
| A | HOH346 |
| A | ARG106 |
| site_id | AC3 |
| Number of Residues | 8 |
| Details | binding site for residue EQU B 201 |
| Chain | Residue |
| A | ASN93 |
| B | TYR16 |
| B | ASN40 |
| B | PHE86 |
| B | MET90 |
| B | LEU99 |
| B | ASP103 |
| B | TRP120 |
| site_id | AC4 |
| Number of Residues | 3 |
| Details | binding site for residue SO4 B 202 |
| Chain | Residue |
| B | ARG106 |
| B | THR115 |
| B | GLN117 |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 2 |
| Details | ACT_SITE: Proton donor |
| Chain | Residue | Details |
| A | TYR16 | |
| B | TYR16 | |
| site_id | SWS_FT_FI2 |
| Number of Residues | 2 |
| Details | ACT_SITE: Proton acceptor |
| Chain | Residue | Details |
| A | ASN40 | |
| B | ASN40 | |
| Chain | Residue | Details |
| A | ASP103 | |
| B | 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 |
| site_id | MCSA2 |
| Number of Residues | 4 |
| Details | M-CSA 349 |
| Chain | Residue | Details |
| B | TYR16 | proton acceptor, proton donor |
| B | ASN40 | proton acceptor, proton donor |
| B | ASP100 | electrostatic stabiliser |
| B | ASP103 | electrostatic stabiliser |
