FAIRMol

OSA_Lib_370

Pose ID 6946 Compound 3823 Pose 172

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T11
L. infantum SIR2 L. infantum
Ligand OSA_Lib_370

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
33.4 kcal/mol
Protein clashes
7
Internal clashes
7
Native overlap
contact recall 0.72, Jaccard 0.72, H-bond role recall 0.20
Burial
61%
Hydrophobic fit
92%
Reason: 7 internal clashes
7 protein-contact clashes 7 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.546 kcal/mol/HA) ✓ Good fit quality (FQ -5.78) ✓ Good burial (61% SASA buried) ✓ Lipophilic contacts well-matched (92%) ✗ Very high strain energy (33.4 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (21)
Score
-22.953
kcal/mol
LE
-0.546
kcal/mol/HA
Fit Quality
-5.78
FQ (Leeson)
HAC
42
heavy atoms
MW
578
Da
LogP
6.29
cLogP
Final rank
4.2850
rank score
Inter norm
-0.631
normalised
Contacts
13
H-bonds 2
Strain ΔE
33.4 kcal/mol
SASA buried
61%
Lipo contact
92% BSA apolar/total
SASA unbound
881 Ų
Apolar buried
494 Ų

Interaction summary

HBA 2 HY 8 PI 4 CLASH 7

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: permissive. Residues: 2.

PI · π–π interactions

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

HY · Hydrophobic contacts

CLASH · Clashes

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: permissive.
Name5OL0Contacts18
PoseOpen native poseHB0
IFP residues
ASN193 GLN220 GLU192 GLY191 HIS144 HIS222 ILE126 LEU194 LEU226 PHE189 PHE190 PHE199 PHE74 PRO223 THR71 VAL187 VAL188 VAL221
Current overlap13Native recall0.72
Jaccard0.72RMSD-
HB strict1Strict recall0.20
HB same residue+role1HB role recall0.20
HB same residue2HB residue recall0.50

Protein summary

287 residues
Protein targetT11Atoms4391
Residues287Chains1
Residue summaryLEU:627; ARG:432; VAL:384; GLU:316; PHE:300; ILE:285; ALA:260; PRO:238; HIS:187; ASP:157; LYS:154; SER:154; THR:154; GLY:147; ASN:140; TYR:126

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
290 2.1461280527532844 -0.568221 -20.5489 1 16 0 0.00 0.00 - no Open
172 4.28496167266979 -0.631217 -22.9533 2 13 13 0.72 0.20 - 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 -22.953kcal/mol
Ligand efficiency (LE) -0.5465kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.776
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 42HA

Physicochemical properties

Molecular weight 577.8Da
Lipinski: ≤ 500 Da
LogP (cLogP) 6.29
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 33.43kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 71.13kcal/mol
Minimised FF energy 37.70kcal/mol

SASA & burial

✓ computed
SASA (unbound) 880.6Ų
Total solvent-accessible surface area of free ligand
BSA total 539.6Ų
Buried surface area upon binding
BSA apolar 494.1Ų
Hydrophobic contacts buried
BSA polar 45.5Ų
Polar contacts buried
Fraction buried 61.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 91.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2222.2Ų
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 2380.0Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 992.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)