FAIRMol

KB_HAT_17

Pose ID 6140 Compound 513 Pose 44

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_17

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
51.4 kcal/mol
Protein clashes
8
Internal clashes
8
Native overlap
contact recall 0.88, Jaccard 0.88, H-bond role recall 0.73
Burial
65%
Hydrophobic fit
72%
Reason: 8 internal clashes, strain 51.4 kcal/mol
strain ΔE 51.4 kcal/mol 8 protein-contact clashes 8 intramolecular clashes 68% of hydrophobic surface is solvent-exposed (13/19 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 ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.651 kcal/mol/HA) ✓ Good fit quality (FQ -6.15) ✓ Strong H-bond network (15 bonds) ✓ Deep burial (65% SASA buried) ✓ Lipophilic contacts well-matched (72%) ✗ Extreme strain energy (51.4 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (12)
Score
-18.238
kcal/mol
LE
-0.651
kcal/mol/HA
Fit Quality
-6.15
FQ (Leeson)
HAC
28
heavy atoms
MW
400
Da
LogP
1.13
cLogP
Strain ΔE
51.4 kcal/mol
SASA buried
65%
Lipo contact
72% BSA apolar/total
SASA unbound
675 Ų
Apolar buried
316 Ų

Interaction summary

HB 15 HY 3 PI 2 CLASH 8 ⚠ Exposure 68%
🚨Solvent-exposed hydrophobic surface — desolvation penalty likely
68% of hydrophobic surface is solvent-exposed (13/19 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 19 Buried (contacted) 6 Exposed 13 LogP 1.13 H-bonds 15
Exposed fragments: phenyl (4/6 atoms exposed)phenyl (6/6 atoms exposed)phenyl (5/6 atoms exposed)
Final rank6.010Score-18.238
Inter norm-1.021Intra norm0.369
Top1000noExcludedno
Contacts15H-bonds15
Artifact reasongeometry warning; 12 clashes; 3 protein clashes; high strain Δ 51.4
Residues
ARG116 ARG140 ARG144 ASN106 CYS72 GLY73 GLY75 GLY77 HIS105 HIS14 HIS141 ILE76 LEU101 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 overlap15Native recall0.88
Jaccard0.88RMSD-
HB strict9Strict recall0.69
HB same residue+role8HB role recall0.73
HB same residue8HB residue recall0.73

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
77 2.876430342267816 -0.922413 -22.2431 5 19 0 0.00 0.00 - no Open
114 2.883794498530214 -1.02014 -26.3795 3 17 0 0.00 0.00 - no Open
101 2.9293523248686655 -0.843323 -23.4699 7 17 0 0.00 0.00 - no Open
114 3.601961305920066 -1.19695 -28.055 4 21 0 0.00 0.00 - no Open
85 3.6319795394564807 -0.83297 -17.4434 6 19 0 0.00 0.00 - no Open
71 4.15022742952253 -1.05998 -23.809 15 20 5 0.29 0.18 - no Open
71 4.421576432535559 -0.829435 -18.9188 4 17 0 0.00 0.00 - no Open
89 4.489621695148427 -0.89201 -19.623 10 17 0 0.00 0.00 - no Open
92 4.6462206342733205 -0.843229 -22.0498 9 15 0 0.00 0.00 - no Open
64 4.727763877486028 -1.16427 -28.89 10 16 0 0.00 0.00 - no Open
44 6.009884957343629 -1.02072 -18.2378 15 15 15 0.88 0.73 - 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 -18.238kcal/mol
Ligand efficiency (LE) -0.6513kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.149
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 28HA

Physicochemical properties

Molecular weight 400.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.13
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 51.38kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -74.94kcal/mol
Minimised FF energy -126.32kcal/mol

SASA & burial

✓ computed
SASA (unbound) 675.1Ų
Total solvent-accessible surface area of free ligand
BSA total 440.7Ų
Buried surface area upon binding
BSA apolar 316.3Ų
Hydrophobic contacts buried
BSA polar 124.5Ų
Polar contacts buried
Fraction buried 65.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 71.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2306.5Ų
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 661.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)