FAIRMol

KB_chagas_190

Pose ID 6921 Compound 3646 Pose 147

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_190

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Likely artefact or unreliable pose
Binding strong Geometry high Native strong SASA done
Strain ΔE
28.2 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.67, Jaccard 0.50, H-bond role recall 0.40
Burial
80%
Hydrophobic fit
85%
Reason: no major geometry red flags detected
2 protein-contact clashes
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Not classified (>100 mg/L)
Daphnia EC₅₀
Not classified (>100 mg/L)
Algae IC₅₀
Not classified (>100 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
No
ADMET alerts (in-silico)
hERG Low Ames Clear DILI Low
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.681 kcal/mol/HA) ✓ Good fit quality (FQ -6.63) ✓ Good H-bonds (4 bonds) ✓ Deep burial (80% SASA buried) ✓ Lipophilic contacts well-matched (85%) ✗ High strain energy (28.2 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (7) ✗ Many internal clashes (10)
Score
-21.108
kcal/mol
LE
-0.681
kcal/mol/HA
Fit Quality
-6.63
FQ (Leeson)
HAC
31
heavy atoms
MW
442
Da
LogP
1.85
cLogP
Final rank
1.5360
rank score
Inter norm
-0.815
normalised
Contacts
18
H-bonds 4
Strain ΔE
28.2 kcal/mol
SASA buried
80%
Lipo contact
85% BSA apolar/total
SASA unbound
779 Ų
Apolar buried
528 Ų

Interaction summary

HBD 2 HBA 2 HY 9 PI 4 CLASH 2

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 4.

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: 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 overlap12Native recall0.67
Jaccard0.50RMSD-
HB strict2Strict recall0.40
HB same residue+role2HB role recall0.40
HB same residue2HB residue recall0.50

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
147 1.5360284675800595 -0.815125 -21.1084 4 18 12 0.67 0.40 - no Current
153 2.759367407244691 -0.749478 -15.656 5 18 0 0.00 0.00 - no Open
148 3.2496746393915794 -0.757057 -20.6022 4 16 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 -21.108kcal/mol
Ligand efficiency (LE) -0.6809kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.634
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 31HA

Physicochemical properties

Molecular weight 441.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.85
Lipinski: ≤ 5
Rotatable bonds 11

Conformational strain (MMFF94s)

Strain energy (ΔE) 28.15kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -18.58kcal/mol
Minimised FF energy -46.73kcal/mol

SASA & burial

✓ computed
SASA (unbound) 778.7Ų
Total solvent-accessible surface area of free ligand
BSA total 621.2Ų
Buried surface area upon binding
BSA apolar 528.2Ų
Hydrophobic contacts buried
BSA polar 93.0Ų
Polar contacts buried
Fraction buried 79.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 85.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2109.0Ų
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 941.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)