FAIRMol

KB_Leish_56

Pose ID 6171 Compound 3426 Pose 75

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_56

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
21.2 kcal/mol
Protein clashes
7
Internal clashes
7
Native overlap
contact recall 0.94, Jaccard 0.89, H-bond role recall 0.27
Burial
77%
Hydrophobic fit
92%
Reason: 7 internal clashes
7 protein-contact clashes 7 intramolecular clashes 42% of hydrophobic surface appears solvent-exposed (8/19 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.832 kcal/mol/HA) ✓ Good fit quality (FQ -7.45) ✓ Strong H-bond network (10 bonds) ✓ Deep burial (77% SASA buried) ✓ Lipophilic contacts well-matched (92%) ✗ High strain energy (21.2 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (6)
Score
-19.961
kcal/mol
LE
-0.832
kcal/mol/HA
Fit Quality
-7.45
FQ (Leeson)
HAC
24
heavy atoms
MW
319
Da
LogP
3.68
cLogP
Strain ΔE
21.2 kcal/mol
SASA buried
77%
Lipo contact
92% BSA apolar/total
SASA unbound
596 Ų
Apolar buried
422 Ų

Interaction summary

HB 10 HY 6 PI 2 CLASH 7 ⚠ Exposure 42%

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

⚠️Partial hydrophobic solvent exposure
42% of hydrophobic surface appears solvent-exposed (8/19 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 19 Buried (contacted) 11 Exposed 8 LogP 3.68 H-bonds 10
Exposed fragments: phenyl (3/5 atoms exposed)phenyl (3/3 atoms exposed)aliphatic chain/group (2 atoms exposed)
Final rank2.765Score-19.961
Inter norm-0.997Intra norm0.165
Top1000noExcludedno
Contacts17H-bonds10
Artifact reasongeometry warning; 6 clashes; 1 protein clash; moderate strain Δ 21.2
Residues
ALA15 ARG116 ARG140 ARG144 ASN106 ASP13 CYS72 GLY73 GLY77 HIS105 HIS14 HIS141 ILE76 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 overlap16Native recall0.94
Jaccard0.89RMSD-
HB strict4Strict recall0.31
HB same residue+role3HB role recall0.27
HB same residue3HB residue recall0.27

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
75 2.7647148221547324 -0.996669 -19.9606 10 17 16 0.94 0.27 - 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 -19.961kcal/mol
Ligand efficiency (LE) -0.8317kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.454
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 24HA

Physicochemical properties

Molecular weight 319.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.68
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 21.20kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 11.30kcal/mol
Minimised FF energy -9.90kcal/mol

SASA & burial

✓ computed
SASA (unbound) 596.4Ų
Total solvent-accessible surface area of free ligand
BSA total 459.9Ų
Buried surface area upon binding
BSA apolar 422.2Ų
Hydrophobic contacts buried
BSA polar 37.8Ų
Polar contacts buried
Fraction buried 77.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 91.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2318.0Ų
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 658.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)