FAIRMol

Z56784540

Pose ID 12128 Compound 441 Pose 607

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 Z56784540
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
27.9 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.69, Jaccard 0.53
Burial
66%
Hydrophobic fit
87%
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.752 kcal/mol/HA) ✓ Good fit quality (FQ -7.53) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (66% SASA buried) ✓ Lipophilic contacts well-matched (87%) ✗ High strain energy (27.9 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (3) ✗ Many internal clashes (13)
Score
-25.586
kcal/mol
LE
-0.752
kcal/mol/HA
Fit Quality
-7.53
FQ (Leeson)
HAC
34
heavy atoms
MW
467
Da
LogP
5.71
cLogP
Strain ΔE
27.9 kcal/mol
SASA buried
66%
Lipo contact
87% BSA apolar/total
SASA unbound
712 Ų
Apolar buried
407 Ų

Interaction summary

HB 7 HY 24 PI 2 CLASH 2
Final rank1.379Score-25.586
Inter norm-0.624Intra norm-0.128
Top1000noExcludedno
Contacts13H-bonds7
Artifact reasongeometry warning; 13 clashes; 3 protein contact clashes; moderate strain Δ 27.9
Residues
CYS52 GLU18 GLY49 ILE339 LEU17 MET113 SER109 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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
574 1.21924446113001 -0.825589 -24.1557 5 13 0 0.00 - - no Open
572 1.2374133435758157 -0.946124 -29.5206 0 16 0 0.00 - - no Open
607 1.3787497362240406 -0.624245 -25.5863 7 13 9 0.69 - - no Current
588 1.989812337083393 -0.88379 -28.1667 2 19 0 0.00 - - no Open
596 2.5303307627247644 -0.872194 -28.1392 4 19 0 0.00 - - no Open
615 4.3772337826415235 -0.805989 -29.2608 7 15 0 0.00 - - no Open
585 5.144733837029786 -0.786401 -28.0387 9 13 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 -25.586kcal/mol
Ligand efficiency (LE) -0.7525kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.530
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 34HA

Physicochemical properties

Molecular weight 466.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.71
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 27.95kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 100.40kcal/mol
Minimised FF energy 72.45kcal/mol

SASA & burial

✓ computed
SASA (unbound) 712.1Ų
Total solvent-accessible surface area of free ligand
BSA total 469.1Ų
Buried surface area upon binding
BSA apolar 406.5Ų
Hydrophobic contacts buried
BSA polar 62.6Ų
Polar contacts buried
Fraction buried 65.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 86.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3220.2Ų
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 1468.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)