FAIRMol

KB_Leish_102

Pose ID 9609 Compound 3842 Pose 123

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 KB_Leish_102
PDB9IFF

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 and worth follow-up
Binding strong Geometry high Native mixed SASA done
Strain ΔE
9.1 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.54, Jaccard 0.37
Burial
80%
Hydrophobic fit
94%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.050 kcal/mol/HA) ✓ Good fit quality (FQ -9.27) ✓ Good H-bonds (5 bonds) ✓ Deep burial (80% SASA buried) ✓ Lipophilic contacts well-matched (94%) ✗ Moderate strain (9.1 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (3) ✗ Internal clashes (5)
Score
-24.162
kcal/mol
LE
-1.050
kcal/mol/HA
Fit Quality
-9.27
FQ (Leeson)
HAC
23
heavy atoms
MW
310
Da
LogP
2.40
cLogP
Strain ΔE
9.1 kcal/mol
SASA buried
80%
Lipo contact
94% BSA apolar/total
SASA unbound
586 Ų
Apolar buried
437 Ų

Interaction summary

HB 5 HY 24 PI 1 CLASH 1

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 rank0.106Score-24.162
Inter norm-1.048Intra norm-0.002
Top1000noExcludedno
Contacts13H-bonds5
Artifact reasongeometry warning; 5 clashes; 3 protein contact clashes
Residues
ALA209 ALA67 ALA90 GLY66 LEU73 LYS211 LYS89 MET70 PRO212 PRO213 TYR210 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 overlap7Native recall0.54
Jaccard0.37RMSD-
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
123 0.10592004599192299 -1.04822 -24.1621 5 13 7 0.54 - - no Current
99 1.288652952551071 -1.1661 -23.8854 7 20 0 0.00 - - no Open
107 1.412855325087305 -1.07972 -22.0499 6 11 0 0.00 - - no Open
162 1.4926657424115972 -0.90001 -18.9506 3 9 0 0.00 - - no Open
137 1.5191068721501768 -0.899115 -16.4714 7 14 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 -24.162kcal/mol
Ligand efficiency (LE) -1.0505kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.272
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 23HA

Physicochemical properties

Molecular weight 310.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.40
Lipinski: ≤ 5
Rotatable bonds 3

Conformational strain (MMFF94s)

Strain energy (ΔE) 9.15kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 88.14kcal/mol
Minimised FF energy 78.99kcal/mol

SASA & burial

✓ computed
SASA (unbound) 586.5Ų
Total solvent-accessible surface area of free ligand
BSA total 466.3Ų
Buried surface area upon binding
BSA apolar 437.3Ų
Hydrophobic contacts buried
BSA polar 29.0Ų
Polar contacts buried
Fraction buried 79.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 93.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3057.5Ų
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 4005.2Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1504.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)