FAIRMol

OSA_Lib_151

Pose ID 10371 Compound 95 Pose 206

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T16
T. brucei TR (Dimer interface (site 2)) T. brucei Dimer interface (site 2)
Ligand OSA_Lib_151
PDB6RB5

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Promising SASA cached
Promising and worth follow-up
Binding strong Geometry high Native strong SASA done
Strain ΔE
12.3 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.75, Jaccard 0.50
Burial
74%
Hydrophobic fit
92%
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-0.823 kcal/mol/HA) ✓ Good fit quality (FQ -7.86) ✓ Deep burial (74% SASA buried) ✓ Lipophilic contacts well-matched (92%) ✗ Moderate strain (12.3 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)
Score
-23.863
kcal/mol
LE
-0.823
kcal/mol/HA
Fit Quality
-7.86
FQ (Leeson)
HAC
29
heavy atoms
MW
430
Da
LogP
3.96
cLogP
Strain ΔE
12.3 kcal/mol
SASA buried
74%
Lipo contact
92% BSA apolar/total
SASA unbound
670 Ų
Apolar buried
458 Ų

Interaction summary

HB 2 HY 24 PI 0 CLASH 2

HB · H-bonds

Mode: strict. Count shows atom-level H-bonds; unique residues in summary: 0.

PI · π–π interactions

No pi · π–π interactions detected for this pose.

HY · Hydrophobic contacts

CLASH · Clashes

Final rank3.100Score-23.863
Inter norm-0.868Intra norm0.045
Top1000noExcludedno
Contacts15H-bonds2
Artifact reasongeometry warning; 9 clashes; 2 protein clashes
Residues
ALA209 ALA90 GLY214 GLY85 LEU73 LYS211 LYS89 MET70 PRO187 PRO212 PRO213 SER86 TYR210 TYR69 VAL88

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name6RB5Contacts12
PoseOpen native poseHB0
IFP residues
ALA90 ARG74 GLY85 LEU73 LYS89 MET70 PHE83 PRO212 PRO213 SER86 SER87 VAL88
Current overlap9Native recall0.75
Jaccard0.50RMSD-
HB strict0Strict recall-
HB same residue+role0HB role recall-
HB same residue0HB residue recall-

Protein summary

493 residues
Protein targetT16Atoms7551
Residues493Chains1
Residue summaryVAL:768; LYS:704; LEU:703; ILE:532; GLU:450; THR:434; ARG:408; PHE:400; ALA:390; ASN:350; PRO:350; GLY:336; SER:319; TYR:294; ASP:276; MET:221

Receptor context

1 kept / 0 excluded
Receptor context filtering: interactions and SASA are computed against protein atoms plus allowed cofactors/ions. Native ligand-like HETATM partners are excluded from scoring.
Kept context 1 Excluded HETATM 0
Kept cofactors / ions
A:FAD501

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
216 0.9265518522755457 -0.89305 -25.0055 0 19 0 0.00 - - no Open
206 3.1002406330986148 -0.867916 -23.8633 2 15 9 0.75 - - 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 -23.863kcal/mol
Ligand efficiency (LE) -0.8229kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.855
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 430.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.96
Lipinski: ≤ 5
Rotatable bonds 3

Conformational strain (MMFF94s)

Strain energy (ΔE) 12.34kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 57.95kcal/mol
Minimised FF energy 45.61kcal/mol

SASA & burial

✓ computed
SASA (unbound) 670.4Ų
Total solvent-accessible surface area of free ligand
BSA total 496.2Ų
Buried surface area upon binding
BSA apolar 458.3Ų
Hydrophobic contacts buried
BSA polar 37.9Ų
Polar contacts buried
Fraction buried 74.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 92.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3224.7Ų
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 4076.6Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1475.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)