FAIRMol

KB_chagas_164

Pose ID 2834 Compound 702 Pose 124

DB SELECTIONDocking 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_164
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
18.6 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.76, Jaccard 0.68, H-bond role recall 0.67
Burial
87%
Hydrophobic fit
78%
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 (-1.424 kcal/mol/HA) ✓ Good fit quality (FQ -12.76) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (87% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ Moderate strain (18.6 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (5) ✗ Many internal clashes (12)
Score
-34.176
kcal/mol
LE
-1.424
kcal/mol/HA
Fit Quality
-12.76
FQ (Leeson)
HAC
24
heavy atoms
MW
338
Da
LogP
1.85
cLogP
Strain ΔE
18.6 kcal/mol
SASA buried
87%
Lipo contact
78% BSA apolar/total
SASA unbound
575 Ų
Apolar buried
391 Ų

Interaction summary

HB 8 HY 24 PI 5 CLASH 1
Final rank0.801Score-34.176
Inter norm-1.460Intra norm0.036
Top1000noExcludedno
Contacts15H-bonds8
Artifact reasongeometry warning; 12 clashes; 5 protein contact clashes; 1 severe cofactor-context clash
Residues
ARG17 ASP181 GLY225 HIS241 LEU188 LEU226 LYS198 NDP302 PHE113 SER111 SER112 TYR191 TYR194 VAL230 ARG287

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

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 overlap13Native recall0.76
Jaccard0.68RMSD-
HB strict5Strict recall0.71
HB same residue+role4HB role recall0.67
HB same residue4HB residue recall0.80

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
173 0.7297662232967618 -1.1223 -25.4623 2 17 0 0.00 0.00 - no Open
166 0.7619998499724264 -1.12236 -21.9231 11 16 0 0.00 0.00 - no Open
124 0.8007085204419594 -1.45986 -34.1762 8 15 13 0.76 0.67 - no Current
176 1.465631046449186 -1.34406 -32.047 6 18 0 0.00 0.00 - no Open
156 1.9477162826235883 -1.0966 -22.0804 4 17 0 0.00 0.00 - no Open
142 1.9889542389045647 -1.07786 -25.6529 6 14 0 0.00 0.00 - no Open
165 2.619897110181579 -0.985905 -19.201 5 10 0 0.00 0.00 - no Open
97 3.761259210392481 -0.998031 -20.1356 14 13 0 0.00 0.00 - no Open
187 4.198272735387158 -0.88192 -20.6453 5 12 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 -34.176kcal/mol
Ligand efficiency (LE) -1.4240kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -12.762
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 24HA

Physicochemical properties

Molecular weight 338.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.85
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 18.56kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -150.42kcal/mol
Minimised FF energy -168.99kcal/mol

SASA & burial

✓ computed
SASA (unbound) 574.9Ų
Total solvent-accessible surface area of free ligand
BSA total 500.6Ų
Buried surface area upon binding
BSA apolar 390.7Ų
Hydrophobic contacts buried
BSA polar 109.9Ų
Polar contacts buried
Fraction buried 87.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1628.6Ų
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 2179.4Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1013.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)