FAIRMol

KB_chagas_19

Pose ID 2823 Compound 1988 Pose 113

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_19
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
8.0 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.76, Jaccard 0.72, H-bond role recall 0.67
Burial
97%
Hydrophobic fit
84%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Low conformational strain (8.0 kcal/mol) ✓ Excellent LE (-1.580 kcal/mol/HA) ✓ Good fit quality (FQ -12.35) ✓ Good H-bonds (5 bonds) ✓ Deep burial (97% SASA buried) ✓ Lipophilic contacts well-matched (84%) ✗ Geometry warnings ✗ Internal clashes (6)
Score
-26.856
kcal/mol
LE
-1.580
kcal/mol/HA
Fit Quality
-12.35
FQ (Leeson)
HAC
17
heavy atoms
MW
231
Da
LogP
1.70
cLogP
Final rank
0.9001
rank score
Inter norm
-1.704
normalised
Contacts
14
H-bonds 6
Strain ΔE
8.0 kcal/mol
SASA buried
97%
Lipo contact
84% BSA apolar/total
SASA unbound
469 Ų
Apolar buried
384 Ų

Interaction summary

HBD 3 HBA 2 HY 5 PI 2 CLASH 1

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 3.

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 overlap13Native recall0.76
Jaccard0.72RMSD-
HB strict5Strict recall0.71
HB same residue+role4HB role recall0.67
HB same residue4HB residue recall0.80

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
113 0.9000737669162162 -1.70368 -26.8561 6 14 13 0.76 0.67 - no Current

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -26.856kcal/mol
Ligand efficiency (LE) -1.5798kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -12.353
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 17HA

Physicochemical properties

Molecular weight 231.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.70
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 7.96kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -120.61kcal/mol
Minimised FF energy -128.57kcal/mol

SASA & burial

✓ computed
SASA (unbound) 468.7Ų
Total solvent-accessible surface area of free ligand
BSA total 454.8Ų
Buried surface area upon binding
BSA apolar 383.9Ų
Hydrophobic contacts buried
BSA polar 70.9Ų
Polar contacts buried
Fraction buried 97.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 84.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1555.3Ų
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 1019.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)