Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
3D complex viewer
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Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak
SASA cached
Weak or marginal quality
Binding strong
Geometry medium
Native strong
SASA done
Strain ΔE
37.4 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.69, Jaccard 0.64
Reason: no major geometry red flags detected
3 protein-contact clashes
3 intramolecular clashes
Molecular report
Weak
Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.566 kcal/mol/HA)
✓ Good fit quality (FQ -5.79)
✓ Good H-bonds (5 bonds)
✓ Good burial (52% SASA buried)
✓ Lipophilic contacts well-matched (96%)
✗ Very high strain energy (37.4 kcal/mol)
✗ Geometry warnings
✗ Many internal clashes (16)
Score
-20.937
kcal/mol
LE
-0.566
kcal/mol/HA
Fit Quality
-5.79
FQ (Leeson)
HAC
37
heavy atoms
MW
520
Da
LogP
3.25
cLogP
Interaction summary
HB 5
HY 24
PI 3
CLASH 3
Interaction summary
HB 5
HY 24
PI 3
CLASH 3
HB · H-bonds
Mode: strict. Count shows atom-level H-bonds; unique residues in summary: 0.
PI · π–π interactions
Native π–π recall is disabled because no explicit native π–π reference was stored.
HY · Hydrophobic contacts
CLASH · Clashes
| Final rank | 3.805 | Score | -20.937 |
|---|---|---|---|
| Inter norm | -0.661 | Intra norm | 0.095 |
| Top1000 | no | Excluded | no |
| Contacts | 10 | H-bonds | 5 |
| Artifact reason | geometry warning; 16 clashes; 2 protein clashes; high strain Δ 37.4 | ||
| Residues |
ASP116
GLU18
GLY112
ILE106
LEU17
MET113
SER109
SER14
TRP21
TYR110
| ||
Native ligand reference
★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
| Name | 6RB5 | Contacts | 13 |
|---|---|---|---|
| Pose | Open native pose | HB | 0 |
| IFP residues |
ASP116
GLU18
GLY112
ILE106
LEU17
MET113
SER109
THR117
THR335
TRP21
TYR110
VAL53
VAL58
| ||
| Current overlap | 9 | Native recall | 0.69 |
| Jaccard | 0.64 | RMSD | - |
| HB strict | 0 | Strict recall | - |
| HB same residue+role | 0 | HB role recall | - |
| HB same residue | 0 | HB residue recall | - |
Protein summary
493 residues
| Protein target | T18 | Atoms | 7550 |
|---|---|---|---|
| Residues | 493 | 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:276; 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 38 | 1.182010137534338 | -0.689588 | -25.2184 | 2 | 21 | 0 | 0.00 | - | - | no | Open |
| 32 | 1.556077942818333 | -0.697691 | -18.5516 | 3 | 19 | 0 | 0.00 | - | - | no | Open |
| 38 | 3.8047452205929675 | -0.660608 | -20.9374 | 5 | 10 | 9 | 0.69 | - | - | no | Current |
| 46 | 4.1320782012718285 | -0.550079 | -14.5393 | 3 | 11 | 0 | 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
-20.937kcal/mol
Ligand efficiency (LE)
-0.5659kcal/mol/HA
Score / heavy atom count
Fit quality (FQ)
-5.793
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count
37HA
Physicochemical properties
Molecular weight
520.1Da
Lipinski: ≤ 500 Da
LogP (cLogP)
3.25
Lipinski: ≤ 5
Rotatable bonds
7
Conformational strain (MMFF94s)
Strain energy (ΔE)
37.36kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy
150.59kcal/mol
Minimised FF energy
113.24kcal/mol
SASA & burial
✓ computed
SASA (unbound)
834.1Ų
Total solvent-accessible surface area of free ligand
BSA total
434.4Ų
Buried surface area upon binding
BSA apolar
417.1Ų
Hydrophobic contacts buried
BSA polar
17.3Ų
Polar contacts buried
Fraction buried
52.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio
96.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA
-3376.3Ų
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
4076.6Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA
1490.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)