FAIRMol

KB_HAT_148

Pose ID 9592 Compound 1023 Pose 106

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T15
T. brucei TR (Dimer cleft site) T. brucei Dimer cleft site
Ligand KB_HAT_148
PDB9IFF

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
20.3 kcal/mol
Protein clashes
0
Internal clashes
15
Native overlap
contact recall 0.92, Jaccard 0.71
Burial
74%
Hydrophobic fit
85%
Reason: 15 internal clashes
15 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.727 kcal/mol/HA) ✓ Good fit quality (FQ -7.21) ✓ Deep burial (74% SASA buried) ✓ Lipophilic contacts well-matched (85%) ✗ High strain energy (20.3 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (15)
Score
-23.983
kcal/mol
LE
-0.727
kcal/mol/HA
Fit Quality
-7.21
FQ (Leeson)
HAC
33
heavy atoms
MW
464
Da
LogP
4.06
cLogP
Final rank
2.2263
rank score
Inter norm
-0.726
normalised
Contacts
16
H-bonds 2
Strain ΔE
20.3 kcal/mol
SASA buried
74%
Lipo contact
85% BSA apolar/total
SASA unbound
790 Ų
Apolar buried
500 Ų

Interaction summary

HBD 1 HBA 1 HY 8 PI 1 CLASH 0

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 2.

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.

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name9IFFContacts13
PoseOpen native poseHB0
IFP residues
ALA209 ARG74 ASN208 GLY214 GLY215 GLY85 LEU73 LYS211 MET70 PHE83 PRO212 PRO213 VAL88
Current overlap12Native recall0.92
Jaccard0.71RMSD-
HB strict0Strict recall-
HB same residue+role0HB role recall-
HB same residue0HB residue recall-

Protein summary

489 residues
Protein targetT15Atoms7420
Residues489Chains1
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:204

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
86 1.1010197118959768 -0.782252 -23.9087 2 19 0 0.00 - - no Open
106 2.22631670315216 -0.726009 -23.9827 2 16 12 0.92 - - no Current
125 3.644158530831586 -0.870596 -30.4366 2 17 0 0.00 - - no Open
94 4.062856512566544 -0.900248 -28.3363 5 16 0 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 -23.983kcal/mol
Ligand efficiency (LE) -0.7267kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.211
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 33HA

Physicochemical properties

Molecular weight 463.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.06
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 20.26kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 44.54kcal/mol
Minimised FF energy 24.28kcal/mol

SASA & burial

✓ computed
SASA (unbound) 789.8Ų
Total solvent-accessible surface area of free ligand
BSA total 585.6Ų
Buried surface area upon binding
BSA apolar 500.3Ų
Hydrophobic contacts buried
BSA polar 85.3Ų
Polar contacts buried
Fraction buried 74.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 85.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3161.2Ų
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 4005.2Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1522.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)