FAIRMol

OHD_TB2020_44

Pose ID 10897 Compound 606 Pose 54

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_TB2020_44
PDB5S9T

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
41.3 kcal/mol
Protein clashes
0
Internal clashes
15
Native overlap
contact recall 0.58, Jaccard 0.28, H-bond role recall 0.00
Burial
82%
Hydrophobic fit
92%
Reason: 15 internal clashes
15 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.609 kcal/mol/HA) ✓ Good fit quality (FQ -6.28) ✓ Good H-bonds (3 bonds) ✓ Deep burial (82% SASA buried) ✓ Lipophilic contacts well-matched (92%) ✗ Extreme strain energy (41.3 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (15)
Score
-23.158
kcal/mol
LE
-0.609
kcal/mol/HA
Fit Quality
-6.28
FQ (Leeson)
HAC
38
heavy atoms
MW
507
Da
LogP
3.89
cLogP
Strain ΔE
41.3 kcal/mol
SASA buried
82%
Lipo contact
92% BSA apolar/total
SASA unbound
865 Ų
Apolar buried
646 Ų

Interaction summary

HB 3 HY 24 PI 2 CLASH 0
Final rank3.492Score-23.158
Inter norm-0.705Intra norm0.096
Top1000noExcludedno
Contacts20H-bonds3
Artifact reasongeometry warning; 15 clashes; 2 protein clashes; high strain Δ 39.0
Residues
ALA284 ALA365 ARG287 ARG361 FAD501 GLY197 GLY286 GLY376 HIS359 ILE199 LEU332 LEU334 LYS60 PHE198 PHE230 SER200 SER364 THR360 VAL362 VAL366

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

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 overlap7Native recall0.58
Jaccard0.28RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

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.

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
57 1.2928519432718022 -0.740588 -27.4889 2 21 0 0.00 0.00 - no Open
48 1.662866798800298 -0.557908 -13.3767 3 15 0 0.00 0.00 - no Open
44 1.709937595085975 -0.655116 -23.32 5 18 0 0.00 0.00 - no Open
56 2.507122119869869 -0.792529 -27.5391 2 17 0 0.00 0.00 - no Open
54 3.4919580822299334 -0.705237 -23.1578 3 20 7 0.58 0.00 - no Current
68 3.7294680818115147 -0.794313 -26.424 7 15 0 0.00 0.00 - 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 -23.158kcal/mol
Ligand efficiency (LE) -0.6094kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.283
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 38HA

Physicochemical properties

Molecular weight 506.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.89
Lipinski: ≤ 5
Rotatable bonds 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 41.29kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 106.06kcal/mol
Minimised FF energy 64.76kcal/mol

SASA & burial

✓ computed
SASA (unbound) 865.1Ų
Total solvent-accessible surface area of free ligand
BSA total 705.5Ų
Buried surface area upon binding
BSA apolar 645.9Ų
Hydrophobic contacts buried
BSA polar 59.6Ų
Polar contacts buried
Fraction buried 81.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 91.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6787.6Ų
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 2079.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)