FAIRMol

KB_chagas_191

Pose ID 2836 Compound 2290 Pose 126

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T05
L. major PTR1 L. major
Ligand KB_chagas_191
PDB7PXX

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Promising SASA cached
Promising and worth follow-up
Binding strong Geometry high Native strong SASA done
Strain ΔE
17.0 kcal/mol
Protein clashes
1
Internal clashes
2
Native overlap
contact recall 0.65, Jaccard 0.55, H-bond role recall 0.33
Burial
84%
Hydrophobic fit
78%
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. 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 ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.041 kcal/mol/HA) ✓ Good fit quality (FQ -9.71) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (84% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ Moderate strain (17.0 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)
Score
-28.115
kcal/mol
LE
-1.041
kcal/mol/HA
Fit Quality
-9.71
FQ (Leeson)
HAC
27
heavy atoms
MW
387
Da
LogP
3.51
cLogP
Final rank
3.9990
rank score
Inter norm
-1.115
normalised
Contacts
14
H-bonds 6
Strain ΔE
17.0 kcal/mol
SASA buried
84%
Lipo contact
78% BSA apolar/total
SASA unbound
644 Ų
Apolar buried
423 Ų

Interaction summary

HBD 1 HBA 5 HY 4 PI 2 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.
NameligandContacts17
PoseOpen native poseHB0
IFP residues
ARG17 GLY225 HIS241 LEU188 LEU226 LEU229 LYS198 MET233 NDP302 PHE113 PRO115 SER111 SER227 TYR191 TYR194 VAL230 ARG287
Current overlap11Native recall0.65
Jaccard0.55RMSD-
HB strict2Strict recall0.29
HB same residue+role2HB role recall0.33
HB same residue2HB residue recall0.40

Protein summary

274 residues
Protein targetT05Atoms4108
Residues274Chains2
Residue summaryLEU:494; ALA:421; ARG:384; VAL:368; THR:295; TYR:231; SER:198; PRO:196; ILE:190; LYS:176; ASN:154; GLU:150; GLY:126; PHE:120; HIS:119; ASP:108

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
A:NDP302

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
84 0.8978347699667351 -0.856296 -18.6325 2 20 0 0.00 0.00 - no Open
148 1.357888497962855 -1.1807 -25.8924 5 19 0 0.00 0.00 - no Open
17 1.7243640298374872 -0.868266 -19.382 2 20 0 0.00 0.00 - no Open
83 1.7561042414858175 -0.860322 -19.3331 2 20 0 0.00 0.00 - no Open
172 2.1483737556840357 -0.787852 -18.4121 4 13 0 0.00 0.00 - no Open
179 3.3422147983594046 -0.973711 -26.1073 7 13 0 0.00 0.00 - no Open
123 3.34487200823826 -0.964684 -25.8709 8 13 0 0.00 0.00 - no Open
14 3.421092231944404 -0.988207 -26.0904 7 14 0 0.00 0.00 - no Open
68 3.5108182235106415 -0.943196 -24.5073 8 10 0 0.00 0.00 - no Open
126 3.999031944814804 -1.11537 -28.1146 6 14 11 0.65 0.33 - no Current
6 4.234950268980408 -0.850058 -20.7434 5 13 0 0.00 0.00 - no Open
162 51.82397871238766 -0.869886 -18.9182 2 20 0 0.00 0.00 - no Open
119 53.49803393991051 -0.976064 -25.9699 7 14 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 -28.115kcal/mol
Ligand efficiency (LE) -1.0413kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.715
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 387.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.51
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 16.96kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 23.66kcal/mol
Minimised FF energy 6.71kcal/mol

SASA & burial

✓ computed
SASA (unbound) 644.1Ų
Total solvent-accessible surface area of free ligand
BSA total 539.3Ų
Buried surface area upon binding
BSA apolar 423.0Ų
Hydrophobic contacts buried
BSA polar 116.3Ų
Polar contacts buried
Fraction buried 83.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1662.4Ų
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 2179.4Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1035.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)