FAIRMol

KB_chagas_122

Pose ID 2116 Compound 1742 Pose 83

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T04
L. major PTR1 L. major
Ligand KB_chagas_122
PDB7PXX

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
13.4 kcal/mol
Protein clashes
1
Internal clashes
2
Native overlap
contact recall 0.58, Jaccard 0.58, H-bond role recall 0.20
Burial
76%
Hydrophobic fit
86%
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 (-0.758 kcal/mol/HA) ✓ Good fit quality (FQ -7.24) ✓ Deep burial (76% SASA buried) ✓ Lipophilic contacts well-matched (86%) ✗ Moderate strain (13.4 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Many internal clashes (13)
Score
-21.981
kcal/mol
LE
-0.758
kcal/mol/HA
Fit Quality
-7.24
FQ (Leeson)
HAC
29
heavy atoms
MW
385
Da
LogP
4.49
cLogP
Strain ΔE
13.4 kcal/mol
SASA buried
76%
Lipo contact
86% BSA apolar/total
SASA unbound
630 Ų
Apolar buried
412 Ų

Interaction summary

HB 1 HY 19 PI 4 CLASH 2
Final rank0.970Score-21.981
Inter norm-0.837Intra norm0.079
Top1000noExcludedno
Contacts11H-bonds1
Artifact reasongeometry warning; 13 clashes; 2 protein contact clashes; 1 cofactor-context clash
Residues
ARG17 HIS241 LEU188 LEU226 LEU229 MET233 NDP302 PHE113 TYR191 TYR194 VAL230

Protein summary

308 residues
Protein targetT04Atoms4210
Residues308Chains3
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

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name7PXXContacts19
PoseOpen native poseHB0
IFP residues
ARG17 ASP181 GLY225 HIS241 LEU188 LEU226 LEU229 LYS198 MET233 NDP302 PHE113 PRO115 SER111 SER112 SER227 TYR191 TYR194 VAL230 ARG287
Current overlap11Native recall0.58
Jaccard0.58RMSD-
HB strict1Strict recall0.17
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.20

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
83 0.9702728446432805 -0.836649 -21.9807 1 11 11 0.58 0.20 - no Current
116 2.7020195791502686 -0.907008 -24.022 8 17 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 -21.981kcal/mol
Ligand efficiency (LE) -0.7580kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.235
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 385.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.49
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 13.37kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 48.34kcal/mol
Minimised FF energy 34.97kcal/mol

SASA & burial

✓ computed
SASA (unbound) 629.8Ų
Total solvent-accessible surface area of free ligand
BSA total 481.0Ų
Buried surface area upon binding
BSA apolar 412.0Ų
Hydrophobic contacts buried
BSA polar 69.0Ų
Polar contacts buried
Fraction buried 76.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 85.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1686.3Ų
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 2179.4Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1049.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)