FAIRMol

KB_HAT_98

Pose ID 11620 Compound 1350 Pose 99

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T18
T. brucei TR (Mepacrine binding site (MBS, site 1)) T. brucei Mepacrine binding site (MBS, site 1)
Ligand KB_HAT_98
PDB6RB5

3D complex viewer

Strict H-bonds Permissive H-bonds
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
34.8 kcal/mol
Protein clashes
0
Internal clashes
4
Native overlap
contact recall 0.69, Jaccard 0.60
Burial
67%
Hydrophobic fit
80%
Reason: no major geometry red flags detected
4 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.953 kcal/mol/HA) ✓ Good fit quality (FQ -8.78) ✓ Good H-bonds (5 bonds) ✓ Deep burial (67% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ Very high strain energy (34.8 kcal/mol) ✗ Geometry warnings
Score
-24.789
kcal/mol
LE
-0.953
kcal/mol/HA
Fit Quality
-8.78
FQ (Leeson)
HAC
26
heavy atoms
MW
369
Da
LogP
2.41
cLogP
Strain ΔE
34.8 kcal/mol
SASA buried
67%
Lipo contact
80% BSA apolar/total
SASA unbound
645 Ų
Apolar buried
343 Ų

Interaction summary

HB 5 HY 24 PI 3 CLASH 0
Final rank2.404Score-24.789
Inter norm-0.864Intra norm-0.090
Top1000noExcludedno
Contacts11H-bonds5
Artifact reasongeometry warning; 4 clashes; 2 protein clashes; high strain Δ 34.8
Residues
ASP116 GLU18 ILE106 ILE339 LEU17 MET113 SER109 SER14 TRP21 TYR110 VAL53

Protein summary

493 residues
Protein targetT18Atoms7550
Residues493Chains1
Residue summaryVAL: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

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name6RB5Contacts13
PoseOpen native poseHB0
IFP residues
ASP116 GLU18 GLY112 ILE106 LEU17 MET113 SER109 THR117 THR335 TRP21 TYR110 VAL53 VAL58
Current overlap9Native recall0.69
Jaccard0.60RMSD-
HB strict0Strict recall-
HB same residue+role0HB role recall-
HB same residue0HB residue recall-

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.

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
126 1.9730971090425937 -0.766642 -23.6303 7 11 0 0.00 - - no Open
89 2.1194122091100187 -1.2851 -35.8251 9 19 0 0.00 - - no Open
99 2.4036349306201834 -0.863675 -24.789 5 11 9 0.69 - - no Current
101 2.691812672169717 -0.968109 -27.572 7 15 0 0.00 - - no Open
117 2.903503364535646 -1.03678 -24.8124 4 18 0 0.00 - - no Open

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -24.789kcal/mol
Ligand efficiency (LE) -0.9534kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.784
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 26HA

Physicochemical properties

Molecular weight 369.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.41
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 34.80kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -10.56kcal/mol
Minimised FF energy -45.36kcal/mol

SASA & burial

✓ computed
SASA (unbound) 644.9Ų
Total solvent-accessible surface area of free ligand
BSA total 430.6Ų
Buried surface area upon binding
BSA apolar 343.1Ų
Hydrophobic contacts buried
BSA polar 87.5Ų
Polar contacts buried
Fraction buried 66.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 79.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3133.4Ų
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 1471.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)