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
Reject
SASA cached
Promising but geometrically suspicious
Binding strong
Geometry low
Native strong
SASA done
Strain ΔE
52.0 kcal/mol
Protein clashes
6
Internal clashes
6
Native overlap
contact recall 0.92, Jaccard 0.65, H-bond role recall 1.00
Reason: 6 internal clashes, strain 52.0 kcal/mol
strain ΔE 52.0 kcal/mol
6 protein-contact clashes
6 intramolecular clashes
48% of hydrophobic surface appears solvent-exposed (12/25 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Molecular report
Reject
Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.436 kcal/mol/HA)
✓ Good fit quality (FQ -4.43)
✓ Strong H-bond network (6 bonds)
✓ Deep burial (72% SASA buried)
✓ Lipophilic contacts well-matched (85%)
✗ Extreme strain energy (52.0 kcal/mol)
✗ Geometry warnings
✗ Many internal clashes (16)
Score
-15.700
kcal/mol
LE
-0.436
kcal/mol/HA
Fit Quality
-4.43
FQ (Leeson)
HAC
36
heavy atoms
MW
506
Da
LogP
2.56
cLogP
Interaction summary
HB 6
HY 24
PI 2
CLASH 6
⚠ Exposure 48%
Interaction summary
HB 6
HY 24
PI 2
CLASH 6
⚠ Exposure 48%
Partial hydrophobic solvent exposure
48% of hydrophobic surface appears solvent-exposed (12/25 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 25
Buried (contacted) 13
Exposed 12
LogP 2.56
H-bonds 6
Exposed fragments:
phenyl (6/6 atoms exposed)phenyl (4/6 atoms exposed)aliphatic chain/group (2 atoms exposed)
| Final rank | 3.955 | Score | -15.700 |
|---|---|---|---|
| Inter norm | -0.638 | Intra norm | 0.202 |
| Top1000 | no | Excluded | no |
| Contacts | 16 | H-bonds | 6 |
| Artifact reason | geometry warning; 16 clashes; 1 protein clash; high strain Δ 49.8 | ||
| Residues |
ALA365
ARG228
ARG287
ARG331
FAD501
GLY286
ILE288
LEU332
LEU334
MET333
PHE198
PHE230
SER364
THR374
TYR221
VAL366
| ||
Protein summary
1033 residues
| Protein target | T17 | Atoms | 15160 |
|---|---|---|---|
| Residues | 1033 | Chains | 2 |
| Residue summary | VAL:1536; LEU:1387; LYS:1386; ILE:1064; GLU:900; THR:868; ARG:816; PHE:800; ALA:780; ASN:700; PRO:686; GLY:672; SER:616; TYR:588; ASP:528; MET:408 | ||
Receptor context
2 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 2
Excluded HETATM 0
Kept cofactors / ions
A:FAD501
B:FAD501
Native ligand reference
★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
| Name | 5S9T | Contacts | 12 |
|---|---|---|---|
| Pose | Open native pose | HB | 0 |
| IFP residues |
ALA365
ARG228
ARG331
GLY229
LEU332
LEU334
MET333
PHE198
PHE230
SER364
THR374
VAL366
| ||
| Current overlap | 11 | Native recall | 0.92 |
| Jaccard | 0.65 | RMSD | - |
| HB strict | 1 | Strict recall | 1.00 |
| HB same residue+role | 1 | HB role recall | 1.00 |
| HB same residue | 1 | HB residue recall | 1.00 |
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
All stored poses for this docking hit
| Pose | Final rank | Inter norm | Score | HB | CT | CT overlap | CT recall | HB role rec. | RMSD | Excluded | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 413 | 1.4772393418466514 | -0.727675 | -19.7103 | 2 | 19 | 0 | 0.00 | 0.00 | - | no | Open |
| 344 | 3.5555355175645533 | -0.661665 | -18.6116 | 4 | 16 | 0 | 0.00 | 0.00 | - | no | Open |
| 360 | 3.6683736478958884 | -0.713014 | -19.8235 | 3 | 19 | 0 | 0.00 | 0.00 | - | no | Open |
| 432 | 3.8170719094493064 | -0.718143 | -21.7535 | 4 | 17 | 0 | 0.00 | 0.00 | - | no | Open |
| 398 | 3.9547081171645138 | -0.637738 | -15.6996 | 6 | 16 | 11 | 0.92 | 1.00 | - | no | Current |
Molecular metrics
RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
Scoring & efficiency
Docking score
-15.700kcal/mol
Ligand efficiency (LE)
-0.4361kcal/mol/HA
Score / heavy atom count
Fit quality (FQ)
-4.432
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count
36HA
Physicochemical properties
Molecular weight
506.0Da
Lipinski: ≤ 500 Da
LogP (cLogP)
2.56
Lipinski: ≤ 5
Rotatable bonds
9
Conformational strain (MMFF94s)
Strain energy (ΔE)
52.04kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy
207.67kcal/mol
Minimised FF energy
155.63kcal/mol
SASA & burial
✓ computed
SASA (unbound)
831.6Ų
Total solvent-accessible surface area of free ligand
BSA total
603.1Ų
Buried surface area upon binding
BSA apolar
514.6Ų
Hydrophobic contacts buried
BSA polar
88.4Ų
Polar contacts buried
Fraction buried
72.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio
85.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA
-6696.1Ų
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
8063.1Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA
2088.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)