FAIRMol

Z653340682

Pose ID 12013 Compound 1234 Pose 492

DB fairmolDocking 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 Z653340682
PDB6RB5

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Promising SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
11.3 kcal/mol
Protein clashes
0
Internal clashes
7
Native overlap
contact recall 0.62, Jaccard 0.50
Burial
67%
Hydrophobic fit
83%
Reason: 7 internal clashes
7 intramolecular clashes
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Cat. 3 — Harmful (10–100 mg/L)
Daphnia EC₅₀
Cat. 3 — Harmful (10–100 mg/L)
Algae IC₅₀
Cat. 3 — Harmful (10–100 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
No
ADMET alerts (in-silico)
hERG Medium Ames Clear DILI Low
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-0.891 kcal/mol/HA) ✓ Good fit quality (FQ -7.99) ✓ Good H-bonds (5 bonds) ✓ Deep burial (67% SASA buried) ✓ Lipophilic contacts well-matched (83%) ✗ Moderate strain (11.3 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (7)
Score
-21.388
kcal/mol
LE
-0.891
kcal/mol/HA
Fit Quality
-7.99
FQ (Leeson)
HAC
24
heavy atoms
MW
319
Da
LogP
2.54
cLogP
Final rank
1.8540
rank score
Inter norm
-0.911
normalised
Contacts
11
H-bonds 5
Strain ΔE
11.3 kcal/mol
SASA buried
67%
Lipo contact
83% BSA apolar/total
SASA unbound
598 Ų
Apolar buried
331 Ų

Interaction summary

HBD 2 HBA 3 HY 7 PI 1 CLASH 0

HBD/HBA · H-bonds (geometric)

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

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 overlap8Native recall0.62
Jaccard0.50RMSD-
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
123 0.1451304685743686 -0.97239 -17.5241 0 15 0 0.00 - - no Open
432 1.5191133026187429 -1.33258 -31.4017 4 12 0 0.00 - - no Open
492 1.8540039960023957 -0.91064 -21.3878 5 11 8 0.62 - - no Current
490 2.0689198891758367 -1.11677 -20.0821 6 15 0 0.00 - - no Open
135 2.8257868822054713 -0.950388 -21.5698 5 11 8 0.62 - - 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 -21.388kcal/mol
Ligand efficiency (LE) -0.8912kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.986
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 24HA

Physicochemical properties

Molecular weight 319.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.54
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 11.31kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 79.03kcal/mol
Minimised FF energy 67.72kcal/mol

SASA & burial

✓ computed
SASA (unbound) 597.8Ų
Total solvent-accessible surface area of free ligand
BSA total 400.8Ų
Buried surface area upon binding
BSA apolar 331.0Ų
Hydrophobic contacts buried
BSA polar 69.8Ų
Polar contacts buried
Fraction buried 67.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 82.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3118.3Ų
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 1469.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)