FAIRMol

KB_chagas_85

Pose ID 6913 Compound 3688 Pose 139

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_85

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
46.5 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.72, Jaccard 0.68, H-bond role recall 0.60
Burial
84%
Hydrophobic fit
76%
Reason: strain 46.5 kcal/mol
strain ΔE 46.5 kcal/mol 2 protein-contact clashes
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Daphnia EC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Algae IC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
No
ADMET alerts (in-silico)
hERG Medium Ames Clear DILI Low
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.903 kcal/mol/HA) ✓ Good fit quality (FQ -8.09) ✓ Good H-bonds (3 bonds) ✓ Deep burial (84% SASA buried) ✓ Lipophilic contacts well-matched (76%) ✗ Extreme strain energy (46.5 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (12)
Score
-21.674
kcal/mol
LE
-0.903
kcal/mol/HA
Fit Quality
-8.09
FQ (Leeson)
HAC
24
heavy atoms
MW
322
Da
LogP
3.78
cLogP
Final rank
2.2655
rank score
Inter norm
-1.029
normalised
Contacts
14
H-bonds 7
Strain ΔE
46.5 kcal/mol
SASA buried
84%
Lipo contact
76% BSA apolar/total
SASA unbound
572 Ų
Apolar buried
364 Ų

Interaction summary

HBD 1 HBA 2 HY 8 PI 4 CLASH 2

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: permissive. Residues: 3.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: permissive.
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 overlap13Native recall0.72
Jaccard0.68RMSD-
HB strict3Strict recall0.60
HB same residue+role3HB role recall0.60
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
139 2.2655010542613305 -1.02924 -21.6742 7 14 13 0.72 0.60 - 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 -21.674kcal/mol
Ligand efficiency (LE) -0.9031kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.093
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 24HA

Physicochemical properties

Molecular weight 322.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.78
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 46.54kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 122.73kcal/mol
Minimised FF energy 76.19kcal/mol

SASA & burial

✓ computed
SASA (unbound) 571.7Ų
Total solvent-accessible surface area of free ligand
BSA total 481.9Ų
Buried surface area upon binding
BSA apolar 364.0Ų
Hydrophobic contacts buried
BSA polar 117.9Ų
Polar contacts buried
Fraction buried 84.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 75.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1871.3Ų
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 949.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)