FAIRMol

Z44847963

Pose ID 12000 Compound 386 Pose 479

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 Z44847963
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 strong SASA done
Strain ΔE
19.4 kcal/mol
Protein clashes
0
Internal clashes
16
Native overlap
contact recall 0.69, Jaccard 0.53
Burial
65%
Hydrophobic fit
78%
Reason: 16 internal clashes
16 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.682 kcal/mol/HA) ✓ Good fit quality (FQ -6.65) ✓ Good H-bonds (3 bonds) ✓ Good burial (65% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ Moderate strain (19.4 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (16)
Score
-21.158
kcal/mol
LE
-0.682
kcal/mol/HA
Fit Quality
-6.65
FQ (Leeson)
HAC
31
heavy atoms
MW
430
Da
LogP
4.70
cLogP
Strain ΔE
19.4 kcal/mol
SASA buried
65%
Lipo contact
78% BSA apolar/total
SASA unbound
677 Ų
Apolar buried
341 Ų

Interaction summary

HB 3 HY 24 PI 2 CLASH 0
Final rank2.784Score-21.158
Inter norm-0.713Intra norm0.030
Top1000noExcludedno
Contacts13H-bonds3
Artifact reasongeometry warning; 16 clashes; 1 protein clash
Residues
CYS52 GLU18 GLY49 ILE106 ILE339 LEU17 MET113 SER14 THR335 TRP21 TYR110 VAL53 VAL58

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
Jaccard0.53RMSD-
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
430 1.123128311050852 -1.09943 -35.0127 9 16 0 0.00 - - no Open
426 1.276767181328564 -1.03765 -27.4665 7 11 0 0.00 - - no Open
461 1.476372703816213 -0.919152 -22.5547 4 18 0 0.00 - - no Open
505 2.272725915955015 -0.896059 -31.1212 6 18 0 0.00 - - no Open
412 2.595705842520432 -0.930582 -22.1691 7 11 0 0.00 - - no Open
480 2.7191745516353594 -0.998852 -30.5149 7 16 0 0.00 - - no Open
432 2.7494314954702257 -0.737507 -24.9974 1 17 0 0.00 - - no Open
479 2.7843928705051484 -0.713014 -21.158 3 13 9 0.69 - - no Current
500 2.791217765151704 -0.947142 -35.2818 6 18 0 0.00 - - no Open
519 2.8617363901087467 -0.750125 -25.1003 6 14 0 0.00 - - no Open
468 2.90635541192479 -0.798773 -25.6886 8 15 0 0.00 - - no Open
441 2.9238440516247857 -0.997616 -30.3793 6 15 0 0.00 - - no Open
468 3.20302513162988 -0.824135 -23.5686 7 9 0 0.00 - - no Open
457 3.6279625865993608 -1.05901 -33.3892 7 17 0 0.00 - - no Open
498 4.00190802340201 -0.862379 -25.6577 7 17 0 0.00 - - no Open
458 5.080933656035169 -0.767574 -22.0757 6 18 0 0.00 - - no Open
458 5.444083752190545 -1.06966 -30.8753 11 29 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 -21.158kcal/mol
Ligand efficiency (LE) -0.6825kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.649
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 31HA

Physicochemical properties

Molecular weight 429.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.70
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 19.44kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 133.83kcal/mol
Minimised FF energy 114.40kcal/mol

SASA & burial

✓ computed
SASA (unbound) 676.7Ų
Total solvent-accessible surface area of free ligand
BSA total 438.2Ų
Buried surface area upon binding
BSA apolar 340.6Ų
Hydrophobic contacts buried
BSA polar 97.7Ų
Polar contacts buried
Fraction buried 64.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 77.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3116.9Ų
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 1481.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)