Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
3D complex viewer
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Promising
SASA cached
Promising and worth follow-up
Binding strong
Geometry high
Native strong
SASA done
Strain ΔE
18.5 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.88, Jaccard 0.58, H-bond role recall 1.00
Reason: no major geometry red flags detected
2 protein-contact clashes
35% of hydrophobic surface appears solvent-exposed (6/17 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Molecular report
Promising
Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-0.909 kcal/mol/HA)
✓ Good fit quality (FQ -8.37)
✓ Good H-bonds (5 bonds)
✓ Good burial (58% SASA buried)
✓ Lipophilic contacts well-matched (82%)
✗ Moderate strain (18.5 kcal/mol)
✗ Geometry warnings
Score
-23.630
kcal/mol
LE
-0.909
kcal/mol/HA
Fit Quality
-8.37
FQ (Leeson)
HAC
26
heavy atoms
MW
369
Da
LogP
2.41
cLogP
Final rank
1.9731
rank score
Inter norm
-0.767
normalised
Contacts
11
H-bonds 7
Interaction summary
HBD 3
HBA 2
HY 4
PI 1
CLASH 2
Interaction summary
HBD 3
HBA 2
HY 4
PI 1
CLASH 2
HBD/HBA · H-bonds (geometric)
HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 4.
PI · π–π interactions
Native π–π recall is disabled because no explicit native π–π reference was stored.
HY · Hydrophobic contacts
CLASH · Clashes
Native ligand reference
★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
| Name | 9IFH | Contacts | 8 |
|---|---|---|---|
| Pose | Open native pose | HB | 0 |
| IFP residues |
ASN402
GLU467
LEU399
PHE396
PRO398
SER394
SER470
THR397
| ||
| Current overlap | 7 | Native recall | 0.88 |
| Jaccard | 0.58 | RMSD | - |
| HB strict | 2 | Strict recall | 1.00 |
| HB same residue+role | 1 | HB role recall | 1.00 |
| HB same residue | 1 | HB residue recall | 1.00 |
Protein summary
492 residues
| Protein target | T20 | Atoms | 7539 |
|---|---|---|---|
| Residues | 492 | Chains | 1 |
| Residue summary | VAL:768; LYS:704; LEU:703; ILE:532; GLU:450; THR:434; ARG:408; PHE:400; ALA:390; ASN:350; PRO:350; GLY:336; SER:319; TYR:294; ASP:264; MET:221 | ||
Receptor context
1 kept / 0 excluded
Receptor context filtering: interactions and SASA are computed against protein atoms plus allowed cofactors/ions. Native ligand-like HETATM partners are excluded from scoring.
Kept context 1
Excluded HETATM 0
Kept cofactors / ions
A:FAD501
All stored poses for this docking hit
| Pose | Final rank | Inter norm | Score | HB | CT | CT overlap | CT recall | HB role rec. | RMSD | Excluded | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 126 | 1.9730971090425937 | -0.766642 | -23.6303 | 7 | 11 | 7 | 0.88 | 1.00 | - | no | Current |
| 89 | 2.1194122091100187 | -1.2851 | -35.8251 | 9 | 19 | 0 | 0.00 | 0.00 | - | no | Open |
| 99 | 2.4036349306201834 | -0.863675 | -24.789 | 5 | 11 | 0 | 0.00 | 0.00 | - | no | Open |
| 101 | 2.691812672169717 | -0.968109 | -27.572 | 7 | 15 | 0 | 0.00 | 0.00 | - | no | Open |
| 117 | 2.903503364535646 | -1.03678 | -24.8124 | 4 | 18 | 0 | 0.00 | 0.00 | - | no | Open |
Molecular metrics
RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
Scoring & efficiency
Docking score
-23.630kcal/mol
Ligand efficiency (LE)
-0.9089kcal/mol/HA
Score / heavy atom count
Fit quality (FQ)
-8.374
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count
26HA
Physicochemical properties
Molecular weight
369.4Da
Lipinski: ≤ 500 Da
LogP (cLogP)
2.41
Lipinski: ≤ 5
Rotatable bonds
5
Conformational strain (MMFF94s)
Strain energy (ΔE)
18.54kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy
-26.95kcal/mol
Minimised FF energy
-45.49kcal/mol
SASA & burial
✓ computed
SASA (unbound)
606.5Ų
Total solvent-accessible surface area of free ligand
BSA total
354.8Ų
Buried surface area upon binding
BSA apolar
290.5Ų
Hydrophobic contacts buried
BSA polar
64.3Ų
Polar contacts buried
Fraction buried
58.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio
81.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA
-3075.4Ų
SASA_nonpolar(complex) − SASA_nonpolar(receptor) − SASA_nonpolar(ligand free). Negative = non-polar surface buried upon binding. Requires full polarity-decomposed SASA computation.
Receptor non-polar SASA
4069.8Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA
1484.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)