FAIRMol

KB_chagas_205

Pose ID 12334 Compound 30 Pose 133

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_chagas_205
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
26.6 kcal/mol
Protein clashes
1
Internal clashes
3
Native overlap
contact recall 0.26, Jaccard 0.18, H-bond role recall 0.20
Burial
92%
Hydrophobic fit
78%
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 (-1.238 kcal/mol/HA) ✓ Good fit quality (FQ -11.10) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (92% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ High strain energy (26.6 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)
Score
-29.723
kcal/mol
LE
-1.238
kcal/mol/HA
Fit Quality
-11.10
FQ (Leeson)
HAC
24
heavy atoms
MW
357
Da
LogP
3.92
cLogP
Strain ΔE
26.6 kcal/mol
SASA buried
92%
Lipo contact
78% BSA apolar/total
SASA unbound
590 Ų
Apolar buried
421 Ų

Interaction summary

HB 9 HY 24 PI 0 CLASH 3
Final rank2.419Score-29.723
Inter norm-1.321Intra norm0.083
Top1000noExcludedno
Contacts18H-bonds9
Artifact reasongeometry warning; 9 clashes; 1 protein clash; 3 cofactor-context clashes; moderate strain Δ 26.6
Residues
ARG287 ASP327 CYS57 GLY56 ILE199 LEU334 LYS60 MET333 NDP800 PHE182 PHE203 PHE367 PRO336 SER162 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 overlap7Native recall0.26
Jaccard0.18RMSD-
HB strict0Strict recall0.00
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

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

HY · Hydrophobic contacts

CLASH · Clashes

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
187 0.5402704844099414 -1.07282 -24.548 5 16 0 0.00 0.00 - no Open
163 0.7517516491154356 -0.979272 -23.8371 0 19 0 0.00 0.00 - no Open
133 2.4187001130590255 -1.32126 -29.7226 9 18 7 0.26 0.20 - no Current
135 2.7051016796894647 -0.945582 -21.7776 4 12 0 0.00 0.00 - no Open
149 4.365947311421602 -1.1036 -25.4308 5 15 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 -29.723kcal/mol
Ligand efficiency (LE) -1.2384kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -11.099
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 24HA

Physicochemical properties

Molecular weight 356.8Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.92
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 26.60kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 90.58kcal/mol
Minimised FF energy 63.98kcal/mol

SASA & burial

✓ computed
SASA (unbound) 589.9Ų
Total solvent-accessible surface area of free ligand
BSA total 540.3Ų
Buried surface area upon binding
BSA apolar 421.2Ų
Hydrophobic contacts buried
BSA polar 119.1Ų
Polar contacts buried
Fraction buried 91.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3055.4Ų
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 1473.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)