FAIRMol

Z169788636

Pose ID 12119 Compound 2452 Pose 598

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 Z169788636
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
Promising but geometrically suspicious
Binding strong Geometry low Native mixed SASA done
Strain ΔE
18.4 kcal/mol
Protein clashes
0
Internal clashes
11
Native overlap
contact recall 0.54, Jaccard 0.41
Burial
74%
Hydrophobic fit
87%
Reason: 11 internal clashes
11 intramolecular clashes
EcoTox / ADMET GDS: UNSAFE UL GreenDrugScore ML model
ECOscore
0.485
aquatic tox · BCF · biodeg.
GDS₃ (3-block)
0.432
ADMET + ECO + DL
ADMETscore (GDS)
0.400
absorption · distr. · metab.
DLscore
0.455
drug-likeness
P(SAFE)
0.07
GDS classification
ADMET alerts (in-silico)
hERG Medium Ames Clear DILI Low
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.882 kcal/mol/HA) ✓ Good fit quality (FQ -8.02) ✓ Deep burial (74% SASA buried) ✓ Lipophilic contacts well-matched (87%) ✗ Moderate strain (18.4 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (11)
Score
-22.049
kcal/mol
LE
-0.882
kcal/mol/HA
Fit Quality
-8.02
FQ (Leeson)
HAC
25
heavy atoms
MW
333
Da
LogP
2.66
cLogP
Final rank
2.9336
rank score
Inter norm
-0.930
normalised
Contacts
11
H-bonds 2
Strain ΔE
18.4 kcal/mol
SASA buried
74%
Lipo contact
87% BSA apolar/total
SASA unbound
584 Ų
Apolar buried
374 Ų

Interaction summary

HBD 1 HBA 1 HY 6 PI 2 CLASH 0

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 2.

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.

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 overlap7Native recall0.54
Jaccard0.41RMSD-
HB strict0Strict recall-
HB same residue+role0HB role recall-
HB same residue0HB residue recall-

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
566 0.8255986124158005 -0.988288 -22.2773 2 15 0 0.00 - - no Open
598 2.9336132304705513 -0.930114 -22.0493 2 11 7 0.54 - - no Current

Molecular metrics

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

Scoring & efficiency

Docking score -22.049kcal/mol
Ligand efficiency (LE) -0.8820kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.018
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 25HA

Physicochemical properties

Molecular weight 333.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.66
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 18.41kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -9.57kcal/mol
Minimised FF energy -27.98kcal/mol

SASA & burial

✓ computed
SASA (unbound) 583.8Ų
Total solvent-accessible surface area of free ligand
BSA total 429.8Ų
Buried surface area upon binding
BSA apolar 374.4Ų
Hydrophobic contacts buried
BSA polar 55.4Ų
Polar contacts buried
Fraction buried 73.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 87.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3123.1Ų
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 4076.6Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1466.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)