FAIRMol

Z31779235

Pose ID 11984 Compound 3731 Pose 463

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 Z31779235
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 high Native strong SASA done
Strain ΔE
21.4 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.92, Jaccard 0.67
Burial
68%
Hydrophobic fit
87%
Reason: no major geometry red flags detected
1 protein-contact clashes
EcoTox / ADMET GDS: UNSAFE UL GreenDrugScore ML model
ECOscore
0.282
aquatic tox · BCF · biodeg.
GDS₃ (3-block)
0.401
ADMET + ECO + DL
ADMETscore (GDS)
0.413
absorption · distr. · metab.
DLscore
0.451
drug-likeness
P(SAFE)
0.06
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 (-0.694 kcal/mol/HA) ✓ Good fit quality (FQ -6.63) ✓ Good H-bonds (3 bonds) ✓ Deep burial (68% SASA buried) ✓ Lipophilic contacts well-matched (87%) ✗ High strain energy (21.4 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (13)
Score
-20.139
kcal/mol
LE
-0.694
kcal/mol/HA
Fit Quality
-6.63
FQ (Leeson)
HAC
29
heavy atoms
MW
390
Da
LogP
3.74
cLogP
Final rank
2.3604
rank score
Inter norm
-0.731
normalised
Contacts
17
H-bonds 5
Strain ΔE
21.4 kcal/mol
SASA buried
68%
Lipo contact
87% BSA apolar/total
SASA unbound
722 Ų
Apolar buried
424 Ų

Interaction summary

HBD 2 HBA 1 PC 1 HY 8 PI 2 CLASH 1

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 3.

PC · Polar contacts (possible, no H geometry)

HBD?/HBA? — heavy-atom distance only, H geometry unavailable. May be real H-bonds.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

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 overlap12Native recall0.92
Jaccard0.67RMSD-
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
463 2.360395556186281 -0.731189 -20.1388 5 17 12 0.92 - - no Current
420 2.7777318781992535 -0.830633 -21.9353 5 16 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 -20.139kcal/mol
Ligand efficiency (LE) -0.6944kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.629
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 390.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.74
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 21.42kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 78.10kcal/mol
Minimised FF energy 56.68kcal/mol

SASA & burial

✓ computed
SASA (unbound) 722.4Ų
Total solvent-accessible surface area of free ligand
BSA total 489.2Ų
Buried surface area upon binding
BSA apolar 424.3Ų
Hydrophobic contacts buried
BSA polar 64.9Ų
Polar contacts buried
Fraction buried 67.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 86.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3180.1Ų
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 1517.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)