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
48.7 kcal/mol
Protein clashes
0
Internal clashes
15
Native overlap
contact recall 0.93, Jaccard 0.76, H-bond role recall 0.78
Reason: 15 internal clashes, strain 48.7 kcal/mol
strain ΔE 48.7 kcal/mol
15 intramolecular clashes
36% of hydrophobic surface appears solvent-exposed (9/25 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 (-0.733 kcal/mol/HA)
✓ Good fit quality (FQ -7.21)
✓ Strong H-bond network (7 bonds)
✓ Deep burial (66% SASA buried)
✓ Lipophilic contacts well-matched (76%)
✗ Extreme strain energy (48.7 kcal/mol)
✗ Geometry warnings
✗ Many internal clashes (15)
Score
-23.446
kcal/mol
LE
-0.733
kcal/mol/HA
Fit Quality
-7.21
FQ (Leeson)
HAC
32
heavy atoms
MW
429
Da
LogP
4.19
cLogP
Interaction summary
HB 7
HY 7
PI 2
CLASH 0
⚠ Exposure 36%
Interaction summary
HB 7
HY 7
PI 2
CLASH 0
⚠ Exposure 36%
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
No clash · clashes detected for this pose.
Partial hydrophobic solvent exposure
36% of hydrophobic surface appears solvent-exposed (9/25 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 25
Buried (contacted) 16
Exposed 9
LogP 4.19
H-bonds 7
Exposed fragments:
phenyl (6/6 atoms exposed)aliphatic chain/group (3 atoms exposed)
| Final rank | 4.408 | Score | -23.446 |
|---|---|---|---|
| Inter norm | -0.818 | Intra norm | 0.086 |
| Top1000 | no | Excluded | no |
| Contacts | 16 | H-bonds | 7 |
| Artifact reason | geometry warning; 15 clashes; 3 protein clashes; high strain Δ 48.7 | ||
| Residues |
ARG137
ARG141
ASN103
HIS102
MET98
TYR94
ASP10
CYS69
GLY70
GLY72
GLY74
HIS11
ILE73
PRO12
SER71
TYR46
| ||
Native ligand reference
★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
| Name | 3K7O | Contacts | 14 |
|---|---|---|---|
| Pose | Open native pose | HB | 0 |
| IFP residues |
ARG137
ARG141
ASN103
HIS102
HIS138
ASP10
CYS69
GLY70
GLY74
HIS11
ILE73
PRO12
SER71
TYR46
| ||
| Current overlap | 13 | Native recall | 0.93 |
| Jaccard | 0.76 | RMSD | - |
| HB strict | 7 | Strict recall | 0.58 |
| HB same residue+role | 7 | HB role recall | 0.78 |
| HB same residue | 6 | HB residue recall | 0.75 |
Protein summary
305 residues
| Protein target | T21 | Atoms | 4646 |
|---|---|---|---|
| Residues | 305 | Chains | 2 |
| Residue summary | ARG:576; ILE:532; VAL:512; GLU:420; ALA:360; PHE:240; HIS:238; LYS:220; THR:210; LEU:190; PRO:168; TYR:168; GLY:154; SER:154; ASP:144; ASN:112 | ||
All stored poses for this docking hit
Molecular metrics
RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
Scoring & efficiency
Docking score
-23.446kcal/mol
Ligand efficiency (LE)
-0.7327kcal/mol/HA
Score / heavy atom count
Fit quality (FQ)
-7.205
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count
32HA
Physicochemical properties
Molecular weight
429.5Da
Lipinski: ≤ 500 Da
LogP (cLogP)
4.19
Lipinski: ≤ 5
Rotatable bonds
5
Conformational strain (MMFF94s)
Strain energy (ΔE)
48.65kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy
147.25kcal/mol
Minimised FF energy
98.60kcal/mol
SASA & burial
✓ computed
SASA (unbound)
738.7Ų
Total solvent-accessible surface area of free ligand
BSA total
484.6Ų
Buried surface area upon binding
BSA apolar
369.5Ų
Hydrophobic contacts buried
BSA polar
115.0Ų
Polar contacts buried
Fraction buried
65.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio
76.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA
-2324.7Ų
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
2482.0Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA
779.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)