FAIRMol

KB_chagas_104

Pose ID 6189 Compound 3309 Pose 93

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T10
L. infantum R5P L. infantum
Ligand KB_chagas_104

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 strong SASA done
Strain ΔE
39.7 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.82, Jaccard 0.70, H-bond role recall 0.36
Burial
69%
Hydrophobic fit
81%
Reason: no major geometry red flags detected
1 protein-contact clashes
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Cat. 3 — Harmful (10–100 mg/L)
Daphnia EC₅₀
Cat. 3 — Harmful (10–100 mg/L)
Algae IC₅₀
Cat. 3 — Harmful (10–100 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
No
ADMET alerts (in-silico)
hERG Medium Ames Clear DILI Low
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.663 kcal/mol/HA) ✓ Good fit quality (FQ -6.68) ✓ Strong H-bond network (11 bonds) ✓ Deep burial (69% SASA buried) ✓ Lipophilic contacts well-matched (81%) ✗ Very high strain energy (39.7 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (14)
Score
-23.198
kcal/mol
LE
-0.663
kcal/mol/HA
Fit Quality
-6.68
FQ (Leeson)
HAC
35
heavy atoms
MW
490
Da
LogP
2.72
cLogP
Final rank
3.6132
rank score
Inter norm
-0.724
normalised
Contacts
17
H-bonds 12
Strain ΔE
39.7 kcal/mol
SASA buried
69%
Lipo contact
81% BSA apolar/total
SASA unbound
759 Ų
Apolar buried
425 Ų

Interaction summary

HBA 11 HY 6 PI 3 CLASH 1

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: permissive. Residues: 6.

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.
Name6FXWContacts17
PoseOpen native poseHB0
IFP residues
ALA15 ARG116 ARG140 ARG144 ASN106 ASP13 CYS72 GLY73 GLY75 GLY77 HIS105 HIS14 HIS141 ILE76 LEU101 THR74 TYR49
Current overlap14Native recall0.82
Jaccard0.70RMSD-
HB strict6Strict recall0.46
HB same residue+role4HB role recall0.36
HB same residue6HB residue recall0.55

Protein summary

155 residues
Protein targetT10Atoms4590
Residues155Chains1
Residue summaryILE:494; ARG:384; ALA:360; VAL:352; LEU:304; GLU:300; THR:280; MET:272; LYS:220; ASP:216; TYR:210; HIS:204; GLY:182; SER:176; GLN:170; ASN:140

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
135 2.873105287369656 -0.749158 -23.1682 5 13 0 0.00 0.00 - no Open
93 3.613209796741848 -0.724488 -23.198 12 17 14 0.82 0.36 - no Current
112 5.761302332405041 -1.04951 -35.638 14 16 5 0.29 0.18 - 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 -23.198kcal/mol
Ligand efficiency (LE) -0.6628kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.685
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 35HA

Physicochemical properties

Molecular weight 489.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.72
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 39.68kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 115.00kcal/mol
Minimised FF energy 75.32kcal/mol

SASA & burial

✓ computed
SASA (unbound) 758.7Ų
Total solvent-accessible surface area of free ligand
BSA total 525.8Ų
Buried surface area upon binding
BSA apolar 424.6Ų
Hydrophobic contacts buried
BSA polar 101.2Ų
Polar contacts buried
Fraction buried 69.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 80.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2348.6Ų
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 2417.4Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 666.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)