FAIRMol

OSA_Lib_201

Pose ID 6202 Compound 3464 Pose 106

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 OSA_Lib_201

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
23.1 kcal/mol
Protein clashes
0
Internal clashes
19
Native overlap
contact recall 0.76, Jaccard 0.72, H-bond role recall 0.36
Burial
57%
Hydrophobic fit
84%
Reason: 19 internal clashes
19 intramolecular clashes 79% of hydrophobic surface is solvent-exposed (26/33 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 (-0.680 kcal/mol/HA) ✓ Good fit quality (FQ -7.01) ✓ Strong H-bond network (7 bonds) ✓ Good burial (57% SASA buried) ✓ Lipophilic contacts well-matched (84%) ✗ High strain energy (23.1 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (19)
Score
-25.841
kcal/mol
LE
-0.680
kcal/mol/HA
Fit Quality
-7.01
FQ (Leeson)
HAC
38
heavy atoms
MW
511
Da
LogP
5.13
cLogP
Final rank
3.2948
rank score
Inter norm
-0.694
normalised
Contacts
14
H-bonds 7
Strain ΔE
23.1 kcal/mol
SASA buried
57%
Lipo contact
84% BSA apolar/total
SASA unbound
796 Ų
Apolar buried
382 Ų

Interaction summary

HBD 1 HBA 6 HY 2 PI 1 CLASH 0

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 6.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

No clash · clashes detected for this pose.

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
Jaccard0.72RMSD-
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
106 3.294838452848123 -0.694205 -25.8413 7 14 13 0.76 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 -25.841kcal/mol
Ligand efficiency (LE) -0.6800kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.011
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 38HA

Physicochemical properties

Molecular weight 510.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.13
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 23.08kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 93.11kcal/mol
Minimised FF energy 70.03kcal/mol

SASA & burial

✓ computed
SASA (unbound) 795.9Ų
Total solvent-accessible surface area of free ligand
BSA total 458.0Ų
Buried surface area upon binding
BSA apolar 382.3Ų
Hydrophobic contacts buried
BSA polar 75.8Ų
Polar contacts buried
Fraction buried 57.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 83.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2438.7Ų
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 698.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)