FAIRMol

KB_HAT_86

Pose ID 12999 Compound 597 Pose 120

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T20
T. brucei TR (Z-site (fragment hotspot)) T. brucei Z-site (fragment hotspot)
Ligand KB_HAT_86
PDB9IFH

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Weak or marginal quality
Binding strong Geometry medium Native strong SASA done
Strain ΔE
10.8 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 1.00, Jaccard 0.67, H-bond role recall 0.00
Burial
54%
Hydrophobic fit
80%
Reason: no major geometry red flags detected
3 protein-contact clashes 3 intramolecular clashes
EcoTox / ADMET GDS: UNSAFE UL GreenDrugScore ML model
ECOscore
0.490
aquatic tox · BCF · biodeg.
GDS₃ (3-block)
0.448
ADMET + ECO + DL
ADMETscore (GDS)
0.443
absorption · distr. · metab.
DLscore
0.430
drug-likeness
P(SAFE)
0.38
GDS classification
ADMET alerts (in-silico)
hERG Medium Ames Clear DILI Low
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.665 kcal/mol/HA) ✓ Good fit quality (FQ -6.41) ✓ Good H-bonds (4 bonds) ✓ Good burial (54% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ Moderate strain (10.8 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (14)
Score
-19.946
kcal/mol
LE
-0.665
kcal/mol/HA
Fit Quality
-6.41
FQ (Leeson)
HAC
30
heavy atoms
MW
420
Da
LogP
3.71
cLogP
Final rank
3.9396
rank score
Inter norm
-0.671
normalised
Contacts
12
H-bonds 6
Strain ΔE
10.8 kcal/mol
SASA buried
54%
Lipo contact
80% BSA apolar/total
SASA unbound
690 Ų
Apolar buried
297 Ų

Interaction summary

HBD 2 HBA 2 HY 4 PI 2 CLASH 3

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 3.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name9IFHContacts8
PoseOpen native poseHB0
IFP residues
ASN402 GLU467 LEU399 PHE396 PRO398 SER394 SER470 THR397
Current overlap8Native recall1.00
Jaccard0.67RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

Protein summary

492 residues
Protein targetT20Atoms7539
Residues492Chains1
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:264; 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
114 3.6092047519144113 -0.980348 -28.9132 7 16 0 0.00 0.00 - no Open
124 3.6661153275384026 -1.01311 -30.2781 7 16 0 0.00 0.00 - no Open
120 3.939630363477459 -0.671014 -19.9457 6 12 8 1.00 0.00 - no Current
85 5.239444192633564 -0.840368 -24.9503 9 18 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 -19.946kcal/mol
Ligand efficiency (LE) -0.6649kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.413
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 419.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.71
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 10.81kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -69.16kcal/mol
Minimised FF energy -79.98kcal/mol

SASA & burial

✓ computed
SASA (unbound) 690.1Ų
Total solvent-accessible surface area of free ligand
BSA total 369.5Ų
Buried surface area upon binding
BSA apolar 296.8Ų
Hydrophobic contacts buried
BSA polar 72.7Ų
Polar contacts buried
Fraction buried 53.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 80.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3096.0Ų
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 4069.8Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1521.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)