FAIRMol

KB_HAT_168

Pose ID 8206 Compound 339 Pose 76

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T13
T. brucei ODC (Active site) T. brucei Active site
Ligand KB_HAT_168
PDB1F3T

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
26.1 kcal/mol
Protein clashes
6
Internal clashes
6
Native overlap
contact recall 0.84, Jaccard 0.70, H-bond role recall 0.43
Burial
82%
Hydrophobic fit
80%
Reason: 6 internal clashes
6 protein-contact clashes 6 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.955 kcal/mol/HA) ✓ Good fit quality (FQ -9.30) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (82% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ High strain energy (26.1 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (17)
Score
-29.594
kcal/mol
LE
-0.955
kcal/mol/HA
Fit Quality
-9.30
FQ (Leeson)
HAC
31
heavy atoms
MW
440
Da
LogP
3.70
cLogP
Strain ΔE
26.1 kcal/mol
SASA buried
82%
Lipo contact
80% BSA apolar/total
SASA unbound
708 Ų
Apolar buried
462 Ų

Interaction summary

HB 8 HY 14 PI 2 CLASH 6

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 rank3.748Score-29.594
Inter norm-0.936Intra norm-0.018
Top1000noExcludedno
Contacts20H-bonds8
Artifact reasongeometry warning; 17 clashes; 1 protein clash; moderate strain Δ 26.2
Residues
ALA111 ALA67 ALA90 ARG154 ARG277 ASN112 ASP332 ASP88 GLU274 GLY236 GLY237 GLY276 HIS197 LYS69 PHE170 PRO113 PRO275 SER200 TYR331 TYR389

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name1F3TContacts19
PoseOpen native poseHB0
IFP residues
ALA111 ALA67 ARG154 ARG277 ASP332 ASP88 CYS70 GLU274 GLY236 GLY237 GLY276 HIS197 LYS69 PHE238 PRO275 SER200 TYR278 TYR331 TYR389
Current overlap16Native recall0.84
Jaccard0.70RMSD-
HB strict4Strict recall0.44
HB same residue+role3HB role recall0.43
HB same residue3HB residue recall0.43

Protein summary

411 residues
Protein targetT13Atoms6340
Residues411Chains1
Residue summaryVAL:624; LEU:551; LYS:506; ARG:480; PHE:460; ILE:418; ASP:348; GLU:332; THR:322; TYR:315; PRO:308; ALA:290; SER:264; GLY:224; ASN:210; GLN:170

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
133 1.1082600200002248 -1.07805 -34.5245 5 17 0 0.00 0.00 - no Open
101 1.680684017342831 -1.03529 -27.2872 6 20 0 0.00 0.00 - no Open
139 2.0451717783385406 -0.837583 -23.3425 4 16 0 0.00 0.00 - no Open
142 3.2407389603383376 -0.757045 -21.9795 6 12 0 0.00 0.00 - no Open
137 3.3490793302350794 -0.629683 -19.4566 5 13 0 0.00 0.00 - no Open
123 3.4326721841522847 -0.896013 -24.588 3 17 0 0.00 0.00 - no Open
76 3.748428789619905 -0.936356 -29.5936 8 20 16 0.84 0.43 - 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 -29.594kcal/mol
Ligand efficiency (LE) -0.9546kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.300
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 31HA

Physicochemical properties

Molecular weight 439.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.70
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 26.15kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 33.58kcal/mol
Minimised FF energy 7.43kcal/mol

SASA & burial

✓ computed
SASA (unbound) 707.5Ų
Total solvent-accessible surface area of free ligand
BSA total 578.8Ų
Buried surface area upon binding
BSA apolar 462.4Ų
Hydrophobic contacts buried
BSA polar 116.4Ų
Polar contacts buried
Fraction buried 81.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 79.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2678.9Ų
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 3461.2Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1366.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)