FAIRMol

KB_HAT_192

Pose ID 10970 Compound 146 Pose 127

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 KB_HAT_192
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
47.0 kcal/mol
Protein clashes
0
Internal clashes
11
Native overlap
contact recall 0.67, Jaccard 0.38, H-bond role recall 1.00
Burial
82%
Hydrophobic fit
85%
Reason: 11 internal clashes, strain 47.0 kcal/mol
strain ΔE 47.0 kcal/mol 11 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.603 kcal/mol/HA) ✓ Good fit quality (FQ -5.98) ✓ Good H-bonds (5 bonds) ✓ Deep burial (82% SASA buried) ✓ Lipophilic contacts well-matched (85%) ✗ Extreme strain energy (47.0 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (11)
Score
-19.901
kcal/mol
LE
-0.603
kcal/mol/HA
Fit Quality
-5.98
FQ (Leeson)
HAC
33
heavy atoms
MW
467
Da
LogP
2.20
cLogP
Strain ΔE
47.0 kcal/mol
SASA buried
82%
Lipo contact
85% BSA apolar/total
SASA unbound
730 Ų
Apolar buried
505 Ų

Interaction summary

HB 5 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 rank0.871Score-19.901
Inter norm-0.690Intra norm0.087
Top1000noExcludedno
Contacts17H-bonds5
Artifact reasongeometry warning; 11 clashes; 1 protein contact clash; high strain Δ 47.0
Residues
ALA284 ARG228 ARG287 ARG331 GLY196 GLY197 GLY229 GLY286 ILE199 ILE285 LEU227 LEU332 LEU334 MET333 PHE198 PHE230 TYR221

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
Jaccard0.38RMSD-
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
127 0.8707253482751838 -0.689938 -19.9011 5 17 8 0.67 1.00 - no Current
146 1.2183248092232248 -0.868291 -22.578 5 20 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 -19.901kcal/mol
Ligand efficiency (LE) -0.6031kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.983
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 33HA

Physicochemical properties

Molecular weight 466.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.20
Lipinski: ≤ 5
Rotatable bonds 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 47.01kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 37.06kcal/mol
Minimised FF energy -9.95kcal/mol

SASA & burial

✓ computed
SASA (unbound) 730.3Ų
Total solvent-accessible surface area of free ligand
BSA total 597.1Ų
Buried surface area upon binding
BSA apolar 505.4Ų
Hydrophobic contacts buried
BSA polar 91.8Ų
Polar contacts buried
Fraction buried 81.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 84.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6608.6Ų
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 2053.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)