FAIRMol

KB_HAT_98

Pose ID 9587 Compound 1350 Pose 101

DB SELECTIONDocking 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_98
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
Weak or marginal quality
Binding strong Geometry high Native strong SASA done
Strain ΔE
28.1 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.85, Jaccard 0.65
Burial
75%
Hydrophobic fit
79%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.060 kcal/mol/HA) ✓ Good fit quality (FQ -9.77) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (75% SASA buried) ✓ Lipophilic contacts well-matched (79%) ✗ High strain energy (28.1 kcal/mol) ✗ Geometry warnings
Score
-27.572
kcal/mol
LE
-1.060
kcal/mol/HA
Fit Quality
-9.77
FQ (Leeson)
HAC
26
heavy atoms
MW
369
Da
LogP
2.41
cLogP
Strain ΔE
28.1 kcal/mol
SASA buried
75%
Lipo contact
79% BSA apolar/total
SASA unbound
653 Ų
Apolar buried
387 Ų

Interaction summary

HB 7 HY 24 PI 0 CLASH 1
Final rank2.692Score-27.572
Inter norm-0.968Intra norm-0.092
Top1000noExcludedno
Contacts15H-bonds7
Artifact reasongeometry warning; 4 clashes; 2 protein clashes; moderate strain Δ 28.1
Residues
ALA209 ALA90 ARG74 ASN208 GLY214 GLY215 GLY66 LEU73 LYS211 MET70 PRO212 PRO213 TYR210 TYR69 VAL88

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

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 overlap11Native recall0.85
Jaccard0.65RMSD-
HB strict0Strict recall-
HB same residue+role0HB role recall-
HB same residue0HB residue recall-

HB · H-bonds

Mode: strict. Count shows atom-level H-bonds; unique residues in summary: 0.

PI · π–π interactions

No pi · π–π interactions detected for this pose.

HY · Hydrophobic contacts

CLASH · Clashes

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
126 1.9730971090425937 -0.766642 -23.6303 7 11 0 0.00 - - no Open
89 2.1194122091100187 -1.2851 -35.8251 9 19 0 0.00 - - no Open
99 2.4036349306201834 -0.863675 -24.789 5 11 0 0.00 - - no Open
101 2.691812672169717 -0.968109 -27.572 7 15 11 0.85 - - no Current
117 2.903503364535646 -1.03678 -24.8124 4 18 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 -27.572kcal/mol
Ligand efficiency (LE) -1.0605kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.770
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 26HA

Physicochemical properties

Molecular weight 369.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.41
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 28.05kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -15.76kcal/mol
Minimised FF energy -43.81kcal/mol

SASA & burial

✓ computed
SASA (unbound) 653.4Ų
Total solvent-accessible surface area of free ligand
BSA total 487.8Ų
Buried surface area upon binding
BSA apolar 386.9Ų
Hydrophobic contacts buried
BSA polar 100.8Ų
Polar contacts buried
Fraction buried 74.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 79.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3002.5Ų
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 4005.2Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1522.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)