FAIRMol

KB_HAT_156

Pose ID 12301 Compound 5097 Pose 100

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T19
T. brucei TR (NADPH binding site) T. brucei NADPH binding site
Ligand KB_HAT_156
PDB2WOV

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 weak SASA done
Strain ΔE
31.9 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.22, Jaccard 0.16, H-bond role recall 0.00
Burial
94%
Hydrophobic fit
85%
Reason: no major geometry red flags detected
3 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.186 kcal/mol/HA) ✓ Good fit quality (FQ -10.63) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (94% SASA buried) ✓ Lipophilic contacts well-matched (85%) ✗ Very high strain energy (31.9 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (11)
Score
-28.470
kcal/mol
LE
-1.186
kcal/mol/HA
Fit Quality
-10.63
FQ (Leeson)
HAC
24
heavy atoms
MW
340
Da
LogP
4.25
cLogP
Strain ΔE
31.9 kcal/mol
SASA buried
94%
Lipo contact
85% BSA apolar/total
SASA unbound
596 Ų
Apolar buried
476 Ų

Interaction summary

HB 8 HY 21 PI 1 CLASH 3

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

Final rank2.293Score-28.470
Inter norm-1.338Intra norm0.152
Top1000noExcludedno
Contacts17H-bonds8
Artifact reasongeometry warning; 11 clashes; 1 protein clash; high strain Δ 31.9
Residues
ASP327 CYS52 CYS57 GLU202 GLY56 ILE199 LEU334 LYS60 MET333 NDP800 PHE182 PHE203 PRO336 SER178 THR335 THR51 VAL55

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name2WOVContacts27
PoseOpen native poseHB0
IFP residues
ALA284 ALA365 ARG222 ARG228 ARG287 ASN223 ASN254 GLN165 GLU202 GLY195 GLY196 GLY197 GLY286 ILE199 ILE285 LEU227 LEU334 LYS60 MET333 NDP800 PHE198 PHE367 PRO167 SER200 TYR221 VAL194 VAL366
Current overlap6Native recall0.22
Jaccard0.16RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

Protein summary

493 residues
Protein targetT19Atoms7541
Residues493Chains1
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:330; 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
C:NDP800

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
100 2.293214517836739 -1.33795 -28.4696 8 17 6 0.22 0.00 - 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 -28.470kcal/mol
Ligand efficiency (LE) -1.1862kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.631
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 24HA

Physicochemical properties

Molecular weight 340.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.25
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 31.93kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 25.51kcal/mol
Minimised FF energy -6.42kcal/mol

SASA & burial

✓ computed
SASA (unbound) 595.6Ų
Total solvent-accessible surface area of free ligand
BSA total 559.2Ų
Buried surface area upon binding
BSA apolar 476.1Ų
Hydrophobic contacts buried
BSA polar 83.1Ų
Polar contacts buried
Fraction buried 93.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 85.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3112.5Ų
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 4064.7Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1464.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)