FAIRMol

KB_chagas_205

Pose ID 6923 Compound 30 Pose 149

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T11
L. infantum SIR2 L. infantum
Ligand KB_chagas_205

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 high Native strong SASA done
Strain ΔE
22.8 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.78, Jaccard 0.74, H-bond role recall 0.40
Burial
80%
Hydrophobic fit
80%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.060 kcal/mol/HA) ✓ Good fit quality (FQ -9.50) ✓ Good H-bonds (5 bonds) ✓ Deep burial (80% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ High strain energy (22.8 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (13)
Score
-25.431
kcal/mol
LE
-1.060
kcal/mol/HA
Fit Quality
-9.50
FQ (Leeson)
HAC
24
heavy atoms
MW
357
Da
LogP
3.92
cLogP
Strain ΔE
22.8 kcal/mol
SASA buried
80%
Lipo contact
80% BSA apolar/total
SASA unbound
620 Ų
Apolar buried
392 Ų

Interaction summary

HB 5 HY 24 PI 3 CLASH 1

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

Final rank4.366Score-25.431
Inter norm-1.104Intra norm0.044
Top1000noExcludedno
Contacts15H-bonds5
Artifact reasongeometry warning; 13 clashes; 3 protein clashes; moderate strain Δ 22.8
Residues
ASN193 GLU192 GLY191 HIS144 HIS222 ILE126 LEU194 PHE189 PHE190 PHE51 PHE74 PRO223 VAL187 VAL188 VAL221

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name5OL0Contacts18
PoseOpen native poseHB0
IFP residues
ASN193 GLN220 GLU192 GLY191 HIS144 HIS222 ILE126 LEU194 LEU226 PHE189 PHE190 PHE199 PHE74 PRO223 THR71 VAL187 VAL188 VAL221
Current overlap14Native recall0.78
Jaccard0.74RMSD-
HB strict2Strict recall0.40
HB same residue+role2HB role recall0.40
HB same residue3HB residue recall0.75

Protein summary

287 residues
Protein targetT11Atoms4391
Residues287Chains1
Residue summaryLEU:627; ARG:432; VAL:384; GLU:316; PHE:300; ILE:285; ALA:260; PRO:238; HIS:187; ASP:157; LYS:154; SER:154; THR:154; GLY:147; ASN:140; TYR:126

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 0 0.00 0.00 - no Open
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 14 0.78 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 -25.431kcal/mol
Ligand efficiency (LE) -1.0596kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.496
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) 22.82kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 86.80kcal/mol
Minimised FF energy 63.98kcal/mol

SASA & burial

✓ computed
SASA (unbound) 620.4Ų
Total solvent-accessible surface area of free ligand
BSA total 493.0Ų
Buried surface area upon binding
BSA apolar 391.8Ų
Hydrophobic contacts buried
BSA polar 101.2Ų
Polar contacts buried
Fraction buried 79.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 79.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1905.5Ų
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 2380.0Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 987.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)