FAIRMol

KB_chagas_132

Pose ID 6914 Compound 955 Pose 140

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T11
L. infantum SIR2 L. infantum
Ligand KB_chagas_132

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
13.7 kcal/mol
Protein clashes
5
Internal clashes
5
Native overlap
contact recall 0.72, Jaccard 0.57, H-bond role recall 0.20
Burial
78%
Hydrophobic fit
78%
Reason: no major geometry red flags detected
5 protein-contact clashes 5 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.708 kcal/mol/HA) ✓ Good fit quality (FQ -7.08) ✓ Deep burial (78% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ Moderate strain (13.7 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (14)
Score
-24.061
kcal/mol
LE
-0.708
kcal/mol/HA
Fit Quality
-7.08
FQ (Leeson)
HAC
34
heavy atoms
MW
475
Da
LogP
3.63
cLogP
Strain ΔE
13.7 kcal/mol
SASA buried
78%
Lipo contact
78% BSA apolar/total
SASA unbound
800 Ų
Apolar buried
492 Ų

Interaction summary

HB 2 HY 24 PI 4 CLASH 5

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

Final rank3.143Score-24.061
Inter norm-0.737Intra norm0.029
Top1000noExcludedno
Contacts18H-bonds2
Artifact reasongeometry warning; 14 clashes; 1 protein clash
Residues
ALA40 ARG52 GLN124 GLU192 GLY191 HIS144 HIS222 ILE126 LEU194 PHE189 PHE190 PHE51 PHE74 PRO223 PRO70 THR71 VAL188 VAL221

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name5OL0Contacts18
PoseOpen native poseHB0
IFP residues
ASN193 GLN220 GLU192 GLY191 HIS144 HIS222 ILE126 LEU194 LEU226 PHE189 PHE190 PHE199 PHE74 PRO223 THR71 VAL187 VAL188 VAL221
Current overlap13Native recall0.72
Jaccard0.57RMSD-
HB strict1Strict recall0.20
HB same residue+role1HB role recall0.20
HB same residue2HB residue recall0.50

Protein summary

287 residues
Protein targetT11Atoms4391
Residues287Chains1
Residue summaryLEU:627; ARG:432; VAL:384; GLU:316; PHE:300; ILE:285; ALA:260; PRO:238; HIS:187; ASP:157; LYS:154; SER:154; THR:154; GLY:147; ASN:140; TYR:126

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
95 1.1841529654796734 -0.696503 -23.591 1 18 0 0.00 0.00 - no Open
170 2.576240317442257 -0.774875 -25.0845 3 19 0 0.00 0.00 - no Open
131 2.6803510726405357 -0.711682 -23.8607 3 17 0 0.00 0.00 - no Open
144 2.9957812529215895 -0.72733 -25.9487 4 19 0 0.00 0.00 - no Open
140 3.1434613533924827 -0.737044 -24.0613 2 18 13 0.72 0.20 - no Current
109 3.414601892745689 -0.892323 -31.238 4 20 0 0.00 0.00 - no Open
72 3.7212335604547015 -0.723532 -22.4786 4 18 0 0.00 0.00 - no Open
79 3.810645461348144 -0.888646 -27.5234 3 16 0 0.00 0.00 - no Open
165 4.940385607351782 -0.876029 -29.5071 4 15 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 -24.061kcal/mol
Ligand efficiency (LE) -0.7077kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.081
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 34HA

Physicochemical properties

Molecular weight 474.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.63
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 13.67kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 37.35kcal/mol
Minimised FF energy 23.68kcal/mol

SASA & burial

✓ computed
SASA (unbound) 799.6Ų
Total solvent-accessible surface area of free ligand
BSA total 626.9Ų
Buried surface area upon binding
BSA apolar 492.1Ų
Hydrophobic contacts buried
BSA polar 134.8Ų
Polar contacts buried
Fraction buried 78.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2050.7Ų
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 2380.0Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 967.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)