FAIRMol

KB_HAT_188

Pose ID 12304 Compound 2334 Pose 103

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_HAT_188
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
Weak or marginal quality
Binding strong Geometry medium Native mixed SASA done
Strain ΔE
31.4 kcal/mol
Protein clashes
1
Internal clashes
3
Native overlap
contact recall 0.30, Jaccard 0.22, H-bond role recall 0.40
Burial
93%
Hydrophobic fit
86%
Reason: no major geometry red flags detected
1 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.117 kcal/mol/HA) ✓ Good fit quality (FQ -10.02) ✓ Good H-bonds (5 bonds) ✓ Deep burial (93% SASA buried) ✓ Lipophilic contacts well-matched (86%) ✗ Very high strain energy (31.4 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (7)
Score
-26.819
kcal/mol
LE
-1.117
kcal/mol/HA
Fit Quality
-10.02
FQ (Leeson)
HAC
24
heavy atoms
MW
407
Da
LogP
3.23
cLogP
Strain ΔE
31.4 kcal/mol
SASA buried
93%
Lipo contact
86% BSA apolar/total
SASA unbound
593 Ų
Apolar buried
472 Ų

Interaction summary

HB 5 HY 21 PI 1 CLASH 3
Final rank2.197Score-26.819
Inter norm-1.290Intra norm0.172
Top1000noExcludedno
Contacts17H-bonds5
Artifact reasongeometry warning; 7 clashes; 2 protein clashes; 2 cofactor-context clashes; high strain Δ 31.4
Residues
ALA365 ARG287 ASP327 CYS52 CYS57 GLY56 ILE199 LEU334 LYS60 MET333 NDP800 PHE367 PRO336 SER162 SER364 THR335 THR51

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 strict2Strict recall0.17
HB same residue+role2HB role recall0.40
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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
112 -0.05464179475164055 -1.01707 -22.3226 2 17 0 0.00 0.00 - no Open
103 2.1971444934793416 -1.28965 -26.8193 5 17 8 0.30 0.40 - 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 -26.819kcal/mol
Ligand efficiency (LE) -1.1175kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.015
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 24HA

Physicochemical properties

Molecular weight 407.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.23
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 31.44kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 24.57kcal/mol
Minimised FF energy -6.87kcal/mol

SASA & burial

✓ computed
SASA (unbound) 593.4Ų
Total solvent-accessible surface area of free ligand
BSA total 550.6Ų
Buried surface area upon binding
BSA apolar 471.7Ų
Hydrophobic contacts buried
BSA polar 78.9Ų
Polar contacts buried
Fraction buried 92.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 85.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3092.4Ų
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 1483.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)