FAIRMol

Z19778118

Pose ID 6736 Compound 3535 Pose 640

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 Z19778118

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
33.5 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.65, Jaccard 0.61, H-bond role recall 0.36
Burial
65%
Hydrophobic fit
75%
Reason: no major geometry red flags detected
2 protein-contact clashes 75% of hydrophobic surface is solvent-exposed (12/16 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 (-0.731 kcal/mol/HA) ✓ Good fit quality (FQ -6.55) ✓ Strong H-bond network (12 bonds) ✓ Good burial (65% SASA buried) ✓ Lipophilic contacts well-matched (75%) ✗ Very high strain energy (33.5 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (8)
Score
-17.546
kcal/mol
LE
-0.731
kcal/mol/HA
Fit Quality
-6.55
FQ (Leeson)
HAC
24
heavy atoms
MW
334
Da
LogP
1.56
cLogP
Strain ΔE
33.5 kcal/mol
SASA buried
65%
Lipo contact
75% BSA apolar/total
SASA unbound
599 Ų
Apolar buried
291 Ų

Interaction summary

HB 12 HY 1 PI 1 CLASH 2 ⚠ Exposure 75%

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
75% of hydrophobic surface is solvent-exposed (12/16 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 16 Buried (contacted) 4 Exposed 12 LogP 1.56 H-bonds 12
Exposed fragments: furanyl (4/6 atoms exposed)aliphatic chain/group (8 atoms exposed)
Final rank4.374Score-17.546
Inter norm-0.997Intra norm0.266
Top1000noExcludedno
Contacts12H-bonds12
Artifact reasongeometry warning; 8 clashes; 3 protein clashes; high strain Δ 33.5
Residues
ARG116 ARG140 ARG144 ASN106 CYS72 GLY73 HIS105 HIS14 HIS141 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 overlap11Native recall0.65
Jaccard0.61RMSD-
HB strict5Strict recall0.38
HB same residue+role4HB role recall0.36
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
640 4.374007169504913 -0.997149 -17.5458 12 12 11 0.65 0.36 - 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 -17.546kcal/mol
Ligand efficiency (LE) -0.7311kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.552
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 24HA

Physicochemical properties

Molecular weight 334.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.56
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 33.53kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -100.42kcal/mol
Minimised FF energy -133.95kcal/mol

SASA & burial

✓ computed
SASA (unbound) 599.4Ų
Total solvent-accessible surface area of free ligand
BSA total 389.0Ų
Buried surface area upon binding
BSA apolar 290.7Ų
Hydrophobic contacts buried
BSA polar 98.4Ų
Polar contacts buried
Fraction buried 64.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 74.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2233.5Ų
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 661.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)