FAIRMol

KB_HAT_189

Pose ID 10258 Compound 4535 Pose 93

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T16
T. brucei TR (Dimer interface (site 2)) T. brucei Dimer interface (site 2)
Ligand KB_HAT_189
PDB6RB5

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
12.4 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.58, Jaccard 0.37
Burial
75%
Hydrophobic fit
90%
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 (-0.780 kcal/mol/HA) ✓ Good fit quality (FQ -7.36) ✓ Deep burial (75% SASA buried) ✓ Lipophilic contacts well-matched (90%) ✗ Moderate strain (12.4 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (15)
Score
-21.828
kcal/mol
LE
-0.780
kcal/mol/HA
Fit Quality
-7.36
FQ (Leeson)
HAC
28
heavy atoms
MW
372
Da
LogP
4.26
cLogP
Final rank
2.1156
rank score
Inter norm
-0.818
normalised
Contacts
14
H-bonds 3
Strain ΔE
12.4 kcal/mol
SASA buried
75%
Lipo contact
90% BSA apolar/total
SASA unbound
635 Ų
Apolar buried
431 Ų

Interaction summary

HBD 1 HY 8 PI 1 CLASH 1

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 1.

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.
Name6RB5Contacts12
PoseOpen native poseHB0
IFP residues
ALA90 ARG74 GLY85 LEU73 LYS89 MET70 PHE83 PRO212 PRO213 SER86 SER87 VAL88
Current overlap7Native recall0.58
Jaccard0.37RMSD-
HB strict0Strict recall-
HB same residue+role0HB role recall-
HB same residue0HB residue recall-

Protein summary

493 residues
Protein targetT16Atoms7551
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:319; TYR:294; ASP:276; 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
93 2.11559068494084 -0.81807 -21.8279 3 14 7 0.58 - - 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 -21.828kcal/mol
Ligand efficiency (LE) -0.7796kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.359
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 28HA

Physicochemical properties

Molecular weight 372.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.26
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 12.44kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 44.21kcal/mol
Minimised FF energy 31.77kcal/mol

SASA & burial

✓ computed
SASA (unbound) 634.9Ų
Total solvent-accessible surface area of free ligand
BSA total 477.6Ų
Buried surface area upon binding
BSA apolar 431.2Ų
Hydrophobic contacts buried
BSA polar 46.4Ų
Polar contacts buried
Fraction buried 75.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 90.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3218.1Ų
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 4076.6Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1441.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)