FAIRMol

KB_HAT_128

Pose ID 12296 Compound 2858 Pose 95

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_128
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 weak SASA done
Strain ΔE
21.2 kcal/mol
Protein clashes
0
Internal clashes
8
Native overlap
contact recall 0.22, Jaccard 0.15, H-bond role recall 0.00
Burial
96%
Hydrophobic fit
81%
Reason: 8 internal clashes
8 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.531 kcal/mol/HA) ✓ Good fit quality (FQ -13.06) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (96% SASA buried) ✓ Lipophilic contacts well-matched (81%) ✗ High strain energy (21.2 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (8)
Score
-32.153
kcal/mol
LE
-1.531
kcal/mol/HA
Fit Quality
-13.06
FQ (Leeson)
HAC
21
heavy atoms
MW
300
Da
LogP
2.21
cLogP
Strain ΔE
21.2 kcal/mol
SASA buried
96%
Lipo contact
81% BSA apolar/total
SASA unbound
538 Ų
Apolar buried
416 Ų

Interaction summary

HB 8 HY 16 PI 0 CLASH 0
Final rank1.115Score-32.153
Inter norm-1.623Intra norm0.092
Top1000noExcludedno
Contacts18H-bonds8
Artifact reasongeometry warning; 8 clashes; 1 protein clash; moderate strain Δ 21.2
Residues
ALA338 ASP327 CYS52 CYS57 GLU202 GLY56 ILE199 ILE206 LEU334 LYS60 MET333 NDP800 PHE182 PHE203 PRO336 SER14 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 overlap6Native recall0.22
Jaccard0.15RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

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.

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
91 1.0974691656403437 -1.32703 -23.9273 5 15 0 0.00 0.00 - no Open
95 1.1145258582921873 -1.62284 -32.1529 8 18 6 0.22 0.00 - no Current
102 1.5423835052535655 -1.48174 -29.6335 5 13 0 0.00 0.00 - no Open
117 3.0289936264421713 -1.06315 -21.0006 5 17 0 0.00 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 -32.153kcal/mol
Ligand efficiency (LE) -1.5311kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -13.060
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 21HA

Physicochemical properties

Molecular weight 300.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.21
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 21.20kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -34.98kcal/mol
Minimised FF energy -56.18kcal/mol

SASA & burial

✓ computed
SASA (unbound) 538.2Ų
Total solvent-accessible surface area of free ligand
BSA total 515.9Ų
Buried surface area upon binding
BSA apolar 415.6Ų
Hydrophobic contacts buried
BSA polar 100.3Ų
Polar contacts buried
Fraction buried 95.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 80.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3035.2Ų
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 1466.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)