FAIRMol

Z32440330

Pose ID 10093 Compound 120 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
T15
T. brucei TR (Dimer cleft site) T. brucei Dimer cleft site
Ligand Z32440330
PDB9IFF

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
16.5 kcal/mol
Protein clashes
6
Internal clashes
6
Native overlap
contact recall 0.62, Jaccard 0.35
Burial
80%
Hydrophobic fit
93%
Reason: 6 internal clashes
6 protein-contact clashes 6 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.674 kcal/mol/HA) ✓ Good fit quality (FQ -6.85) ✓ Good H-bonds (3 bonds) ✓ Deep burial (80% SASA buried) ✓ Lipophilic contacts well-matched (93%) ✗ Moderate strain (16.5 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (12)
Score
-24.271
kcal/mol
LE
-0.674
kcal/mol/HA
Fit Quality
-6.85
FQ (Leeson)
HAC
36
heavy atoms
MW
481
Da
LogP
4.85
cLogP
Strain ΔE
16.5 kcal/mol
SASA buried
80%
Lipo contact
93% BSA apolar/total
SASA unbound
847 Ų
Apolar buried
626 Ų

Interaction summary

HB 3 HY 24 PI 2 CLASH 6

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

Final rank3.107Score-24.271
Inter norm-0.716Intra norm0.042
Top1000noExcludedno
Contacts18H-bonds3
Artifact reasongeometry warning; 12 clashes; 1 protein clash
Residues
ALA209 ALA67 ALA77 ALA90 ARG74 ASN245 ASP84 GLU82 GLY66 GLY85 LEU73 LYS211 MET70 PHE83 SER76 TRP81 TYR69 VAL88

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name9IFFContacts13
PoseOpen native poseHB0
IFP residues
ALA209 ARG74 ASN208 GLY214 GLY215 GLY85 LEU73 LYS211 MET70 PHE83 PRO212 PRO213 VAL88
Current overlap8Native recall0.62
Jaccard0.35RMSD-
HB strict0Strict recall-
HB same residue+role0HB role recall-
HB same residue0HB residue recall-

Protein summary

489 residues
Protein targetT15Atoms7420
Residues489Chains1
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:264; MET:204

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
591 1.0901712035797941 -0.730133 -25.0298 2 18 0 0.00 - - no Open
607 3.107410264721034 -0.716019 -24.2711 3 18 8 0.62 - - no Current

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -24.271kcal/mol
Ligand efficiency (LE) -0.6742kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.852
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 36HA

Physicochemical properties

Molecular weight 480.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.85
Lipinski: ≤ 5
Rotatable bonds 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 16.51kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -4.07kcal/mol
Minimised FF energy -20.57kcal/mol

SASA & burial

✓ computed
SASA (unbound) 846.8Ų
Total solvent-accessible surface area of free ligand
BSA total 672.8Ų
Buried surface area upon binding
BSA apolar 626.2Ų
Hydrophobic contacts buried
BSA polar 46.5Ų
Polar contacts buried
Fraction buried 79.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 93.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3235.0Ų
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 4005.2Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1550.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)