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 medium
Native strong
SASA done
Strain ΔE
19.1 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 1.00, Jaccard 0.67, H-bond role recall 1.00
Reason: no major geometry red flags detected
3 protein-contact clashes
3 intramolecular clashes
41% of hydrophobic surface appears solvent-exposed (7/17 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Molecular report
Promising
Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-0.767 kcal/mol/HA)
✓ Good fit quality (FQ -7.07)
✓ Good H-bonds (5 bonds)
✓ Good burial (60% SASA buried)
✓ Lipophilic contacts well-matched (76%)
✗ Moderate strain (19.1 kcal/mol)
✗ Geometry warnings
✗ Internal clashes (8)
Score
-19.939
kcal/mol
LE
-0.767
kcal/mol/HA
Fit Quality
-7.07
FQ (Leeson)
HAC
26
heavy atoms
MW
377
Da
LogP
0.95
cLogP
Final rank
4.3648
rank score
Inter norm
-0.795
normalised
Contacts
12
H-bonds 7
Interaction summary
HBD 3
HBA 2
HY 3
PI 1
CLASH 3
Interaction summary
HBD 3
HBA 2
HY 3
PI 1
CLASH 3
HBD/HBA · H-bonds (geometric)
HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 5.
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 | 8 | Native recall | 1.00 |
| Jaccard | 0.67 | RMSD | - |
| HB strict | 1 | Strict recall | 0.50 |
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 63 | 1.992548884312731 | -1.30848 | -32.1669 | 13 | 15 | 0 | 0.00 | 0.00 | - | no | Open |
| 98 | 3.3548680929980264 | -1.08604 | -27.0791 | 7 | 16 | 0 | 0.00 | 0.00 | - | no | Open |
| 66 | 3.7209418269626306 | -0.960993 | -21.8361 | 15 | 16 | 0 | 0.00 | 0.00 | - | no | Open |
| 54 | 4.05191409116451 | -1.20808 | -28.3426 | 12 | 16 | 0 | 0.00 | 0.00 | - | no | Open |
| 100 | 4.364750326690326 | -0.79464 | -19.9392 | 7 | 12 | 8 | 1.00 | 1.00 | - | no | Current |
| 52 | 5.016463742920565 | -1.22923 | -29.2776 | 16 | 21 | 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
-19.939kcal/mol
Ligand efficiency (LE)
-0.7669kcal/mol/HA
Score / heavy atom count
Fit quality (FQ)
-7.066
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count
26HA
Physicochemical properties
Molecular weight
376.8Da
Lipinski: ≤ 500 Da
LogP (cLogP)
0.95
Lipinski: ≤ 5
Rotatable bonds
7
Conformational strain (MMFF94s)
Strain energy (ΔE)
19.13kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy
75.44kcal/mol
Minimised FF energy
56.31kcal/mol
SASA & burial
✓ computed
SASA (unbound)
569.0Ų
Total solvent-accessible surface area of free ligand
BSA total
339.5Ų
Buried surface area upon binding
BSA apolar
258.3Ų
Hydrophobic contacts buried
BSA polar
81.2Ų
Polar contacts buried
Fraction buried
59.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio
76.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA
-3011.8Ų
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
1514.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)