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
Weak
SASA cached
Weak or marginal quality
Binding strong
Geometry medium
Native strong
SASA done
Strain ΔE
31.7 kcal/mol
Protein clashes
4
Internal clashes
4
Native overlap
contact recall 0.93, Jaccard 0.81, H-bond role recall 0.44
Reason: no major geometry red flags detected
4 protein-contact clashes
4 intramolecular clashes
Molecular report
Weak
Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.111 kcal/mol/HA)
✓ Good fit quality (FQ -9.48)
✓ Strong H-bond network (13 bonds)
✓ Deep burial (80% SASA buried)
✓ Lipophilic contacts well-matched (79%)
✗ Very high strain energy (31.7 kcal/mol)
✗ Geometry warnings
✗ Many internal clashes (10)
Score
-23.339
kcal/mol
LE
-1.111
kcal/mol/HA
Fit Quality
-9.48
FQ (Leeson)
HAC
21
heavy atoms
MW
283
Da
LogP
1.46
cLogP
Interaction summary
HB 13
HY 4
PI 5
CLASH 4
Interaction summary
HB 13
HY 4
PI 5
CLASH 4
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 | 4.387 | Score | -23.339 |
|---|---|---|---|
| Inter norm | -1.275 | Intra norm | 0.163 |
| Top1000 | no | Excluded | no |
| Contacts | 15 | H-bonds | 13 |
| Artifact reason | geometry warning; 10 clashes; 3 protein clashes; high strain Δ 31.7 | ||
| Residues |
ARG137
ARG141
ASN103
HIS102
HIS138
CYS69
GLY70
GLY72
GLY74
HIS11
ILE73
MET75
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 | 0.81 | RMSD | - |
| HB strict | 4 | Strict recall | 0.33 |
| HB same residue+role | 4 | HB role recall | 0.44 |
| HB same residue | 4 | HB residue recall | 0.50 |
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
| Pose | Final rank | Inter norm | Score | HB | CT | CT overlap | CT recall | HB role rec. | RMSD | Excluded | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 328 | 0.19707021139489783 | -1.49325 | -29.8244 | 8 | 15 | 0 | 0.00 | 0.00 | - | no | Open |
| 353 | 0.5490560060659071 | -1.55331 | -25.1018 | 10 | 14 | 0 | 0.00 | 0.00 | - | no | Open |
| 365 | 1.6482397885984788 | -1.213 | -16.5073 | 4 | 12 | 0 | 0.00 | 0.00 | - | no | Open |
| 356 | 4.046945760056431 | -1.10884 | -20.7068 | 10 | 13 | 0 | 0.00 | 0.00 | - | no | Open |
| 366 | 4.38677596477459 | -1.27472 | -23.3387 | 13 | 15 | 13 | 0.93 | 0.44 | - | no | Current |
Molecular metrics
RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
Scoring & efficiency
Docking score
-23.339kcal/mol
Ligand efficiency (LE)
-1.1114kcal/mol/HA
Score / heavy atom count
Fit quality (FQ)
-9.480
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count
21HA
Physicochemical properties
Molecular weight
283.3Da
Lipinski: ≤ 500 Da
LogP (cLogP)
1.46
Lipinski: ≤ 5
Rotatable bonds
5
Conformational strain (MMFF94s)
Strain energy (ΔE)
31.66kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy
106.89kcal/mol
Minimised FF energy
75.22kcal/mol
SASA & burial
✓ computed
SASA (unbound)
515.2Ų
Total solvent-accessible surface area of free ligand
BSA total
411.1Ų
Buried surface area upon binding
BSA apolar
323.9Ų
Hydrophobic contacts buried
BSA polar
87.1Ų
Polar contacts buried
Fraction buried
79.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio
78.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA
-2141.1Ų
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
2482.0Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA
750.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)