FAIRMol

KB_Leish_97

Pose ID 9608 Compound 2929 Pose 122

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_97
PDB9IFF

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
41.4 kcal/mol
Protein clashes
0
Internal clashes
12
Native overlap
contact recall 0.62, Jaccard 0.40
Burial
79%
Hydrophobic fit
92%
Reason: 12 internal clashes
12 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.616 kcal/mol/HA) ✓ Good fit quality (FQ -5.75) ✓ Good H-bonds (5 bonds) ✓ Deep burial (79% SASA buried) ✓ Lipophilic contacts well-matched (92%) ✗ Extreme strain energy (41.4 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (12)
Score
-16.639
kcal/mol
LE
-0.616
kcal/mol/HA
Fit Quality
-5.75
FQ (Leeson)
HAC
27
heavy atoms
MW
361
Da
LogP
3.63
cLogP
Strain ΔE
41.4 kcal/mol
SASA buried
79%
Lipo contact
92% BSA apolar/total
SASA unbound
660 Ų
Apolar buried
479 Ų

Interaction summary

HB 5 HY 24 PI 0 CLASH 0

HB · H-bonds

Mode: strict. Count shows atom-level H-bonds; unique residues in summary: 0.

PI · π–π interactions

No pi · π–π interactions detected for this pose.

HY · Hydrophobic contacts

CLASH · Clashes

No clash · clashes detected for this pose.
Final rank2.193Score-16.639
Inter norm-0.933Intra norm0.317
Top1000noExcludedno
Contacts15H-bonds5
Artifact reasongeometry warning; 12 clashes; 1 protein clash; high strain Δ 41.4
Residues
ALA209 ALA67 ALA90 ARG74 GLN68 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 overlap8Native recall0.62
Jaccard0.40RMSD-
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
122 2.1925136329642507 -0.933047 -16.6391 5 15 8 0.62 - - no Current
118 3.047618278392683 -1.16644 -29.5052 3 20 0 0.00 - - no Open
116 4.075071937232013 -1.20653 -29.0936 5 19 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 -16.639kcal/mol
Ligand efficiency (LE) -0.6163kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.750
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 361.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.63
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 41.38kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 32.82kcal/mol
Minimised FF energy -8.56kcal/mol

SASA & burial

✓ computed
SASA (unbound) 660.5Ų
Total solvent-accessible surface area of free ligand
BSA total 521.9Ų
Buried surface area upon binding
BSA apolar 479.0Ų
Hydrophobic contacts buried
BSA polar 43.0Ų
Polar contacts buried
Fraction buried 79.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 91.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3086.7Ų
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 1522.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)