FAIRMol

Z56958949

Pose ID 10125 Compound 3328 Pose 639

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 Z56958949
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
Weak or marginal quality
Binding strong Geometry high Native strong SASA done
Strain ΔE
27.2 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.92, Jaccard 0.80
Burial
71%
Hydrophobic fit
68%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.720 kcal/mol/HA) ✓ Good fit quality (FQ -7.20) ✓ Good H-bonds (4 bonds) ✓ Deep burial (71% SASA buried) ✓ Lipophilic contacts well-matched (68%) ✗ High strain energy (27.2 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-24.479
kcal/mol
LE
-0.720
kcal/mol/HA
Fit Quality
-7.20
FQ (Leeson)
HAC
34
heavy atoms
MW
514
Da
LogP
2.43
cLogP
Strain ΔE
27.2 kcal/mol
SASA buried
71%
Lipo contact
68% BSA apolar/total
SASA unbound
743 Ų
Apolar buried
357 Ų

Interaction summary

HB 4 HY 15 PI 1 CLASH 1
Final rank2.371Score-24.479
Inter norm-0.745Intra norm0.025
Top1000noExcludedno
Contacts14H-bonds4
Artifact reasongeometry warning; 10 clashes; 1 protein clash; moderate strain Δ 27.2
Residues
ALA209 ALA90 ARG74 GLY214 GLY215 GLY85 LEU73 LYS211 LYS89 MET70 PHE83 PRO212 PRO213 VAL88

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

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 overlap12Native recall0.92
Jaccard0.80RMSD-
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
621 1.8679556384499576 -0.689074 -23.5172 1 15 0 0.00 - - no Open
639 2.3705265978021854 -0.745467 -24.4793 4 14 12 0.92 - - no Current
613 3.1415033704732194 -0.893982 -29.412 3 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 -24.479kcal/mol
Ligand efficiency (LE) -0.7200kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.204
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 34HA

Physicochemical properties

Molecular weight 513.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.43
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 27.18kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 17.42kcal/mol
Minimised FF energy -9.77kcal/mol

SASA & burial

✓ computed
SASA (unbound) 742.9Ų
Total solvent-accessible surface area of free ligand
BSA total 525.8Ų
Buried surface area upon binding
BSA apolar 357.1Ų
Hydrophobic contacts buried
BSA polar 168.7Ų
Polar contacts buried
Fraction buried 70.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 67.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2977.3Ų
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 4005.2Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1547.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)