FAIRMol

GemmaOHDUnisi_26

Pose ID 11875 Compound 3109 Pose 354

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 GemmaOHDUnisi_26
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
15.7 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.69, Jaccard 0.47
Burial
68%
Hydrophobic fit
78%
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 (-0.576 kcal/mol/HA) ✓ Good fit quality (FQ -5.44) ✓ Good H-bonds (5 bonds) ✓ Deep burial (68% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ Moderate strain (15.7 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (12)
Score
-16.127
kcal/mol
LE
-0.576
kcal/mol/HA
Fit Quality
-5.44
FQ (Leeson)
HAC
28
heavy atoms
MW
372
Da
LogP
5.11
cLogP
Strain ΔE
15.7 kcal/mol
SASA buried
68%
Lipo contact
78% BSA apolar/total
SASA unbound
656 Ų
Apolar buried
351 Ų

Interaction summary

HB 5 HY 19 PI 3 CLASH 2
Final rank3.551Score-16.127
Inter norm-0.839Intra norm0.263
Top1000noExcludedno
Contacts15H-bonds5
Artifact reasongeometry warning; 12 clashes; 2 protein clashes
Residues
ASP116 CYS52 GLU18 GLY112 GLY13 GLY49 GLY50 ILE339 LEU17 MET113 SER109 SER14 THR335 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
Jaccard0.47RMSD-
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
385 1.2860520499306085 -0.813745 -15.6987 9 17 0 0.00 - - no Open
319 1.9323249343972482 -1.23626 -33.0227 6 15 0 0.00 - - no Open
345 2.215341088437669 -1.04016 -25.1848 7 17 0 0.00 - - no Open
346 3.1777867617016966 -1.14625 -27.2467 9 16 0 0.00 - - no Open
338 3.2462078515503885 -0.921637 -21.1922 4 16 0 0.00 - - no Open
354 3.5510777675708924 -0.838749 -16.1268 5 15 9 0.69 - - no Current
455 3.653448925064978 -0.888525 -22.8681 7 19 0 0.00 - - no Open
339 3.8969988921781593 -0.848867 -11.9956 10 17 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 -16.127kcal/mol
Ligand efficiency (LE) -0.5760kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.437
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 28HA

Physicochemical properties

Molecular weight 372.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.11
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 15.74kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 85.43kcal/mol
Minimised FF energy 69.69kcal/mol

SASA & burial

✓ computed
SASA (unbound) 655.5Ų
Total solvent-accessible surface area of free ligand
BSA total 449.4Ų
Buried surface area upon binding
BSA apolar 351.2Ų
Hydrophobic contacts buried
BSA polar 98.2Ų
Polar contacts buried
Fraction buried 68.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3084.5Ų
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 1505.6Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)