FAIRMol

Z19455970

Pose ID 6475 Compound 2298 Pose 379

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 Z19455970

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
21.9 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.76, Jaccard 0.68, H-bond role recall 0.55
Burial
65%
Hydrophobic fit
66%
Reason: no major geometry red flags detected
2 protein-contact clashes 44% of hydrophobic surface appears solvent-exposed (8/18 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 (-0.787 kcal/mol/HA) ✓ Good fit quality (FQ -7.43) ✓ Strong H-bond network (14 bonds) ✓ Deep burial (65% SASA buried) ✓ Lipophilic contacts well-matched (66%) ✗ High strain energy (21.9 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (6)
Score
-22.041
kcal/mol
LE
-0.787
kcal/mol/HA
Fit Quality
-7.43
FQ (Leeson)
HAC
28
heavy atoms
MW
419
Da
LogP
3.01
cLogP
Strain ΔE
21.9 kcal/mol
SASA buried
65%
Lipo contact
66% BSA apolar/total
SASA unbound
651 Ų
Apolar buried
280 Ų

Interaction summary

HB 14 HY 4 PI 2 CLASH 2 ⚠ Exposure 44%

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
44% of hydrophobic surface appears solvent-exposed (8/18 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 18 Buried (contacted) 10 Exposed 8 LogP 3.01 H-bonds 14
Exposed fragments: phenyl (6/6 atoms exposed)aliphatic chain/group (2 atoms exposed)
Final rank3.450Score-22.041
Inter norm-0.999Intra norm0.211
Top1000noExcludedno
Contacts15H-bonds14
Artifact reasongeometry warning; 6 clashes; 2 protein clashes; moderate strain Δ 21.9
Residues
ALA15 ARG116 ARG140 ARG144 ASN106 ASP13 CYS72 GLU138 GLY73 HIS105 HIS14 HIS141 LEU136 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 overlap13Native recall0.76
Jaccard0.68RMSD-
HB strict8Strict recall0.62
HB same residue+role6HB role recall0.55
HB same residue8HB residue recall0.73

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
391 0.8112587710984578 -0.883156 -21.7804 4 19 0 0.00 0.00 - no Open
388 1.761457712336876 -1.18388 -28.0949 12 17 5 0.29 0.27 - no Open
484 2.388298171391906 -0.868572 -20.6754 5 12 0 0.00 0.00 - no Open
101 2.911216982679596 -0.879119 -20.3872 5 13 0 0.00 0.00 - no Open
95 2.970006987126121 -1.08769 -25.015 13 16 5 0.29 0.18 - no Open
379 3.450130273935065 -0.998633 -22.0405 14 15 13 0.76 0.55 - no Current
423 3.7405836219795368 -1.00578 -24.1953 10 15 0 0.00 0.00 - no Open
160 3.885655564123343 -0.784425 -18.1914 7 14 0 0.00 0.00 - no Open
100 4.225272845749715 -1.07342 -27.2468 7 13 0 0.00 0.00 - no Open
73 5.143261743022093 -1.07475 -24.8662 12 15 13 0.76 0.55 - no Open

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -22.041kcal/mol
Ligand efficiency (LE) -0.7872kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.431
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 28HA

Physicochemical properties

Molecular weight 419.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.01
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 21.89kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -20.75kcal/mol
Minimised FF energy -42.64kcal/mol

SASA & burial

✓ computed
SASA (unbound) 651.0Ų
Total solvent-accessible surface area of free ligand
BSA total 425.6Ų
Buried surface area upon binding
BSA apolar 280.3Ų
Hydrophobic contacts buried
BSA polar 145.3Ų
Polar contacts buried
Fraction buried 65.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 65.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2191.8Ų
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 680.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)