FAIRMol

KB_Leish_137

Pose ID 6176 Compound 3547 Pose 80

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T10
L. infantum R5P L. infantum
Ligand KB_Leish_137

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
30.5 kcal/mol
Protein clashes
5
Internal clashes
5
Native overlap
contact recall 0.88, Jaccard 0.83, H-bond role recall 0.45
Burial
66%
Hydrophobic fit
82%
Reason: no major geometry red flags detected
5 protein-contact clashes 5 intramolecular clashes 74% of hydrophobic surface is solvent-exposed (17/23 atoms). Large non-polar area without protein contacts incurs a desolvation penalty and will reduce binding affinity. Consider truncating or replacing the exposed fragment.
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.518 kcal/mol/HA) ✓ Good fit quality (FQ -5.09) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (66% SASA buried) ✓ Lipophilic contacts well-matched (82%) ✗ Very high strain energy (30.5 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-16.573
kcal/mol
LE
-0.518
kcal/mol/HA
Fit Quality
-5.09
FQ (Leeson)
HAC
32
heavy atoms
MW
470
Da
LogP
4.51
cLogP
Strain ΔE
30.5 kcal/mol
SASA buried
66%
Lipo contact
82% BSA apolar/total
SASA unbound
760 Ų
Apolar buried
412 Ų

Interaction summary

HB 8 HY 2 PI 2 CLASH 5 ⚠ Exposure 73%

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

🚨Solvent-exposed hydrophobic surface — desolvation penalty likely
74% of hydrophobic surface is solvent-exposed (17/23 atoms). Large non-polar area without protein contacts incurs a desolvation penalty and will reduce binding affinity. Consider truncating or replacing the exposed fragment.
Non-polar atoms 23 Buried (contacted) 6 Exposed 17 LogP 4.51 H-bonds 8
Exposed fragments: phenyl (3/5 atoms exposed)phenyl (6/6 atoms exposed)phenyl (4/5 atoms exposed)aliphatic chain/group (4 atoms exposed)
Final rank4.584Score-16.573
Inter norm-0.807Intra norm0.289
Top1000noExcludedno
Contacts16H-bonds8
Artifact reasongeometry warning; 10 clashes; 3 protein clashes; high strain Δ 30.5
Residues
ALA15 ARG116 ARG140 ARG144 ASN106 ASP13 CYS72 GLY73 GLY77 HIS105 HIS14 HIS141 LEU101 SER46 THR74 TYR49

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name6FXWContacts17
PoseOpen native poseHB0
IFP residues
ALA15 ARG116 ARG140 ARG144 ASN106 ASP13 CYS72 GLY73 GLY75 GLY77 HIS105 HIS14 HIS141 ILE76 LEU101 THR74 TYR49
Current overlap15Native recall0.88
Jaccard0.83RMSD-
HB strict6Strict recall0.46
HB same residue+role5HB role recall0.45
HB same residue5HB residue recall0.45

Protein summary

155 residues
Protein targetT10Atoms4590
Residues155Chains1
Residue summaryILE:494; ARG:384; ALA:360; VAL:352; LEU:304; GLU:300; THR:280; MET:272; LYS:220; ASP:216; TYR:210; HIS:204; GLY:182; SER:176; GLN:170; ASN:140

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
124 2.209772416141404 -0.7511 -21.2566 5 14 0 0.00 0.00 - no Open
80 4.583978725486131 -0.806529 -16.5729 8 16 15 0.88 0.45 - 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 -16.573kcal/mol
Ligand efficiency (LE) -0.5179kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.093
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 32HA

Physicochemical properties

Molecular weight 469.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.51
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 30.51kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 45.47kcal/mol
Minimised FF energy 14.96kcal/mol

SASA & burial

✓ computed
SASA (unbound) 759.8Ų
Total solvent-accessible surface area of free ligand
BSA total 503.5Ų
Buried surface area upon binding
BSA apolar 412.0Ų
Hydrophobic contacts buried
BSA polar 91.5Ų
Polar contacts buried
Fraction buried 66.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 81.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2334.0Ų
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 2417.4Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 686.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)