FAIRMol

KB_HAT_108

Pose ID 6147 Compound 821 Pose 51

DB SELECTIONDocking 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_HAT_108

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
18.4 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.94, Jaccard 0.89, H-bond role recall 0.45
Burial
67%
Hydrophobic fit
77%
Reason: no major geometry red flags detected
2 protein-contact clashes 35% of hydrophobic surface appears solvent-exposed (6/17 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 (-0.843 kcal/mol/HA) ✓ Good fit quality (FQ -7.77) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (67% SASA buried) ✓ Lipophilic contacts well-matched (77%) ✗ Moderate strain (18.4 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (14)
Score
-21.929
kcal/mol
LE
-0.843
kcal/mol/HA
Fit Quality
-7.77
FQ (Leeson)
HAC
26
heavy atoms
MW
424
Da
LogP
2.94
cLogP
Strain ΔE
18.4 kcal/mol
SASA buried
67%
Lipo contact
77% BSA apolar/total
SASA unbound
624 Ų
Apolar buried
323 Ų

Interaction summary

HB 9 HY 4 PI 2 CLASH 2 ⚠ Exposure 35%
⚠️Partial hydrophobic solvent exposure
35% of hydrophobic surface appears solvent-exposed (6/17 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 17 Buried (contacted) 11 Exposed 6 LogP 2.94 H-bonds 9
Exposed fragments: phenyl (6/6 atoms exposed)
Final rank4.619Score-21.929
Inter norm-0.941Intra norm0.097
Top1000noExcludedno
Contacts17H-bonds9
Artifact reasongeometry warning; 14 clashes; 3 protein clashes
Residues
ALA15 ARG116 ARG140 ARG144 ASN106 ASP13 CYS72 GLY73 GLY75 GLY77 HIS105 HIS14 HIS141 ILE76 LEU136 THR74 TYR49

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

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+role5HB role recall0.45
HB same residue7HB residue recall0.64

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
118 1.679070958897312 -0.990653 -16.9014 5 19 0 0.00 0.00 - no Open
96 2.1404485338200856 -0.907212 -17.1648 4 20 0 0.00 0.00 - no Open
96 2.224977979710623 -0.981451 -19.9899 6 18 0 0.00 0.00 - no Open
100 3.3899381258696657 -0.826209 -21.5758 7 14 0 0.00 0.00 - no Open
129 4.486299856448621 -0.755038 -13.3141 4 10 0 0.00 0.00 - no Open
51 4.619208262629881 -0.940757 -21.9289 9 17 16 0.94 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 -21.929kcal/mol
Ligand efficiency (LE) -0.8434kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.771
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 26HA

Physicochemical properties

Molecular weight 424.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.94
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 18.37kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -63.22kcal/mol
Minimised FF energy -81.59kcal/mol

SASA & burial

✓ computed
SASA (unbound) 623.6Ų
Total solvent-accessible surface area of free ligand
BSA total 418.9Ų
Buried surface area upon binding
BSA apolar 323.1Ų
Hydrophobic contacts buried
BSA polar 95.8Ų
Polar contacts buried
Fraction buried 67.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 77.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2175.2Ų
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 762.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)