FAIRMol

OHD_TB2021_64

Pose ID 10908 Compound 3718 Pose 65

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T17
T. brucei TR (Doorstop site) T. brucei Doorstop site
Ligand OHD_TB2021_64
PDB5S9T

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
39.2 kcal/mol
Protein clashes
0
Internal clashes
19
Native overlap
contact recall 0.67, Jaccard 0.33, H-bond role recall 1.00
Burial
82%
Hydrophobic fit
88%
Reason: 19 internal clashes
19 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.485 kcal/mol/HA) ✓ Good fit quality (FQ -4.90) ✓ Good H-bonds (4 bonds) ✓ Deep burial (82% SASA buried) ✓ Lipophilic contacts well-matched (88%) ✗ Very high strain energy (39.2 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (19)
Score
-16.988
kcal/mol
LE
-0.485
kcal/mol/HA
Fit Quality
-4.90
FQ (Leeson)
HAC
35
heavy atoms
MW
469
Da
LogP
3.36
cLogP
Strain ΔE
39.2 kcal/mol
SASA buried
82%
Lipo contact
88% BSA apolar/total
SASA unbound
806 Ų
Apolar buried
582 Ų

Interaction summary

HB 4 HY 24 PI 2 CLASH 0

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

No clash · clashes detected for this pose.
Final rank3.179Score-16.988
Inter norm-0.636Intra norm0.150
Top1000noExcludedno
Contacts20H-bonds4
Artifact reasongeometry warning; 19 clashes; 1 protein clash; high strain Δ 39.2
Residues
ALA284 ARG287 ARG331 ARG361 ASP330 CYS375 GLY197 GLY286 GLY376 HIS359 ILE199 LEU332 LEU334 MET333 PHE198 PHE230 SER364 THR360 THR374 VAL362

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name5S9TContacts12
PoseOpen native poseHB0
IFP residues
ALA365 ARG228 ARG331 GLY229 LEU332 LEU334 MET333 PHE198 PHE230 SER364 THR374 VAL366
Current overlap8Native recall0.67
Jaccard0.33RMSD-
HB strict1Strict recall1.00
HB same residue+role1HB role recall1.00
HB same residue1HB residue recall1.00

Protein summary

1033 residues
Protein targetT17Atoms15160
Residues1033Chains2
Residue summaryVAL:1536; LEU:1387; LYS:1386; ILE:1064; GLU:900; THR:868; ARG:816; PHE:800; ALA:780; ASN:700; PRO:686; GLY:672; SER:616; TYR:588; ASP:528; MET:408

Receptor context

2 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 2 Excluded HETATM 0
Kept cofactors / ions
A:FAD501 B:FAD501

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
43 2.0051270212081547 -0.669791 -24.1889 7 20 0 0.00 0.00 - no Open
68 2.0793113617384 -0.695575 -21.1268 5 22 0 0.00 0.00 - no Open
52 2.679454707604096 -0.724946 -19.2577 4 20 0 0.00 0.00 - no Open
65 3.1791525052664604 -0.635801 -16.9878 4 20 8 0.67 1.00 - 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 -16.988kcal/mol
Ligand efficiency (LE) -0.4854kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -4.896
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 35HA

Physicochemical properties

Molecular weight 468.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.36
Lipinski: ≤ 5
Rotatable bonds 11

Conformational strain (MMFF94s)

Strain energy (ΔE) 39.16kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 61.70kcal/mol
Minimised FF energy 22.55kcal/mol

SASA & burial

✓ computed
SASA (unbound) 806.0Ų
Total solvent-accessible surface area of free ligand
BSA total 659.1Ų
Buried surface area upon binding
BSA apolar 582.1Ų
Hydrophobic contacts buried
BSA polar 77.0Ų
Polar contacts buried
Fraction buried 81.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 88.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6702.0Ų
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 8063.1Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 2075.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)