FAIRMol

KB_Leish_37

Pose ID 12307 Compound 5045 Pose 106

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T19
T. brucei TR (NADPH binding site) T. brucei NADPH binding site
Ligand KB_Leish_37
PDB2WOV

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 mixed SASA done
Strain ΔE
9.3 kcal/mol
Protein clashes
0
Internal clashes
16
Native overlap
contact recall 0.30, Jaccard 0.22, H-bond role recall 0.20
Burial
92%
Hydrophobic fit
88%
Reason: 16 internal clashes
16 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.390 kcal/mol/HA) ✓ Good fit quality (FQ -12.27) ✓ Good H-bonds (5 bonds) ✓ Deep burial (92% SASA buried) ✓ Lipophilic contacts well-matched (88%) ✗ Moderate strain (9.3 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (16)
Score
-31.976
kcal/mol
LE
-1.390
kcal/mol/HA
Fit Quality
-12.27
FQ (Leeson)
HAC
23
heavy atoms
MW
301
Da
LogP
3.32
cLogP
Strain ΔE
9.3 kcal/mol
SASA buried
92%
Lipo contact
88% BSA apolar/total
SASA unbound
524 Ų
Apolar buried
425 Ų

Interaction summary

HB 5 HY 19 PI 1 CLASH 0
Final rank1.777Score-31.976
Inter norm-1.395Intra norm0.004
Top1000noExcludedno
Contacts18H-bonds5
Artifact reasongeometry warning; 16 clashes; 1 protein clash
Residues
ARG287 CYS57 GLU202 GLY56 ILE199 LEU334 LYS60 LYS61 MET333 NDP800 PHE182 PHE203 PHE367 PRO336 SER178 THR335 THR51 VAL55

Protein summary

493 residues
Protein targetT19Atoms7541
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:330; TYR:294; ASP:264; 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
C:NDP800

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name2WOVContacts27
PoseOpen native poseHB0
IFP residues
ALA284 ALA365 ARG222 ARG228 ARG287 ASN223 ASN254 GLN165 GLU202 GLY195 GLY196 GLY197 GLY286 ILE199 ILE285 LEU227 LEU334 LYS60 MET333 NDP800 PHE198 PHE367 PRO167 SER200 TYR221 VAL194 VAL366
Current overlap8Native recall0.30
Jaccard0.22RMSD-
HB strict1Strict recall0.08
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.25

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

No clash · clashes detected for this pose.

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
106 1.7765226143514923 -1.39463 -31.976 5 18 8 0.30 0.20 - 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 -31.976kcal/mol
Ligand efficiency (LE) -1.3903kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -12.270
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 23HA

Physicochemical properties

Molecular weight 301.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.32
Lipinski: ≤ 5
Rotatable bonds 3

Conformational strain (MMFF94s)

Strain energy (ΔE) 9.29kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -75.54kcal/mol
Minimised FF energy -84.83kcal/mol

SASA & burial

✓ computed
SASA (unbound) 524.2Ų
Total solvent-accessible surface area of free ligand
BSA total 482.6Ų
Buried surface area upon binding
BSA apolar 424.6Ų
Hydrophobic contacts buried
BSA polar 58.0Ų
Polar contacts buried
Fraction buried 92.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 88.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3059.4Ų
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 4064.7Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1462.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)