FAIRMol

KB_HAT_67

Pose ID 10951 Compound 282 Pose 108

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_67
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
44.6 kcal/mol
Protein clashes
2
Internal clashes
19
Native overlap
contact recall 0.67, Jaccard 0.38, H-bond role recall 0.00
Burial
78%
Hydrophobic fit
90%
Reason: 19 internal clashes, strain 44.6 kcal/mol
strain ΔE 44.6 kcal/mol 2 protein-contact clashes 19 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.703 kcal/mol/HA) ✓ Good fit quality (FQ -7.09) ✓ Good H-bonds (3 bonds) ✓ Deep burial (78% SASA buried) ✓ Lipophilic contacts well-matched (90%) ✗ Extreme strain energy (44.6 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Many internal clashes (19)
Score
-24.620
kcal/mol
LE
-0.703
kcal/mol/HA
Fit Quality
-7.09
FQ (Leeson)
HAC
35
heavy atoms
MW
474
Da
LogP
1.03
cLogP
Strain ΔE
44.6 kcal/mol
SASA buried
78%
Lipo contact
90% BSA apolar/total
SASA unbound
778 Ų
Apolar buried
542 Ų

Interaction summary

HB 3 HY 24 PI 2 CLASH 0
Final rank1.812Score-24.620
Inter norm-0.650Intra norm-0.053
Top1000noExcludedno
Contacts17H-bonds3
Artifact reasongeometry warning; 19 clashes; 2 protein contact clashes; moderate strain Δ 29.9
Residues
ALA284 ARG228 ARG287 GLY195 GLY196 GLY197 GLY229 GLY286 ILE199 ILE285 LEU332 LEU334 MET333 PHE198 PHE230 SER364 TYR221

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 overlap8Native recall0.67
Jaccard0.38RMSD-
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
112 1.1054147810155253 -0.76336 -25.367 2 18 0 0.00 0.00 - no Open
113 1.6690392382606072 -0.832458 -26.8363 3 15 0 0.00 0.00 - no Open
108 1.8123485785894613 -0.6505 -24.6203 3 17 8 0.67 0.00 - no Current
121 1.835171955045684 -0.786359 -28.9895 3 19 0 0.00 0.00 - no Open
117 2.12344574088389 -0.97212 -30.8274 2 17 0 0.00 0.00 - no Open
118 4.04908325299697 -0.545176 -22.4332 2 10 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 -24.620kcal/mol
Ligand efficiency (LE) -0.7034kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.095
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 35HA

Physicochemical properties

Molecular weight 473.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.03
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 44.58kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 80.79kcal/mol
Minimised FF energy 36.21kcal/mol

SASA & burial

✓ computed
SASA (unbound) 777.7Ų
Total solvent-accessible surface area of free ligand
BSA total 605.6Ų
Buried surface area upon binding
BSA apolar 542.2Ų
Hydrophobic contacts buried
BSA polar 63.4Ų
Polar contacts buried
Fraction buried 77.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 89.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6721.4Ų
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 2055.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)