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
42.3 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.62, Jaccard 0.40
Reason: strain 42.3 kcal/mol
strain ΔE 42.3 kcal/mol
3 protein-contact clashes
3 intramolecular clashes
60% of hydrophobic surface is solvent-exposed (12/20 atoms). Large non-polar area without protein contacts incurs a desolvation penalty and will reduce binding affinity. Consider truncating or replacing the exposed fragment.
Molecular report
Reject
Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.900 kcal/mol/HA)
✓ Good fit quality (FQ -8.49)
✓ Good H-bonds (3 bonds)
✓ Deep burial (72% SASA buried)
✓ Lipophilic contacts well-matched (90%)
✗ Extreme strain energy (42.3 kcal/mol)
✗ Geometry warnings
✗ Many internal clashes (14)
Score
-25.190
kcal/mol
LE
-0.900
kcal/mol/HA
Fit Quality
-8.49
FQ (Leeson)
HAC
28
heavy atoms
MW
419
Da
LogP
2.52
cLogP
Final rank
3.6326
rank score
Inter norm
-0.900
normalised
Contacts
15
H-bonds 3
Interaction summary
HBD 3
HY 7
PI 0
CLASH 3
Interaction summary
HBD 3
HY 7
PI 0
CLASH 3
HBD/HBA · H-bonds (geometric)
HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: permissive. Residues: 3.
PI · π–π interactions
No pi · π–π interactions detected for this pose.
HY · Hydrophobic contacts
CLASH · Clashes
Native ligand reference
★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: permissive.
| Name | 9IFF | Contacts | 13 |
|---|---|---|---|
| Pose | Open native pose | HB | 0 |
| IFP residues |
ALA209
ARG74
ASN208
GLY214
GLY215
GLY85
LEU73
LYS211
MET70
PHE83
PRO212
PRO213
VAL88
| ||
| Current overlap | 8 | Native recall | 0.62 |
| Jaccard | 0.40 | RMSD | - |
| HB strict | 0 | Strict recall | - |
| HB same residue+role | 0 | HB role recall | - |
| HB same residue | 0 | HB residue recall | - |
Protein summary
489 residues
| Protein target | T15 | Atoms | 7420 |
|---|---|---|---|
| Residues | 489 | 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:204 | ||
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
-25.190kcal/mol
Ligand efficiency (LE)
-0.8997kcal/mol/HA
Score / heavy atom count
Fit quality (FQ)
-8.493
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count
28HA
Physicochemical properties
Molecular weight
419.0Da
Lipinski: ≤ 500 Da
LogP (cLogP)
2.52
Lipinski: ≤ 5
Rotatable bonds
7
Conformational strain (MMFF94s)
Strain energy (ΔE)
42.25kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy
16.68kcal/mol
Minimised FF energy
-25.57kcal/mol
SASA & burial
✓ computed
SASA (unbound)
695.1Ų
Total solvent-accessible surface area of free ligand
BSA total
498.1Ų
Buried surface area upon binding
BSA apolar
447.2Ų
Hydrophobic contacts buried
BSA polar
50.9Ų
Polar contacts buried
Fraction buried
71.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio
89.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA
-3080.7Ų
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
4005.2Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA
1535.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)