FAIRMol

KB_Leish_119

Pose ID 10273 Compound 2422 Pose 108

DB SELECTIONDocking 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_Leish_119
PDB6RB5

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Promising SASA cached
Promising and worth follow-up
Binding strong Geometry high Native mixed SASA done
Strain ΔE
18.1 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.42, Jaccard 0.28
Burial
64%
Hydrophobic fit
78%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-0.787 kcal/mol/HA) ✓ Good fit quality (FQ -7.05) ✓ Good H-bonds (3 bonds) ✓ Good burial (64% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ Moderate strain (18.1 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (7)
Score
-18.890
kcal/mol
LE
-0.787
kcal/mol/HA
Fit Quality
-7.05
FQ (Leeson)
HAC
24
heavy atoms
MW
343
Da
LogP
2.11
cLogP
Strain ΔE
18.1 kcal/mol
SASA buried
64%
Lipo contact
78% BSA apolar/total
SASA unbound
628 Ų
Apolar buried
313 Ų

Interaction summary

HB 3 HY 18 PI 0 CLASH 1
Final rank1.815Score-18.890
Inter norm-0.964Intra norm0.177
Top1000noExcludedno
Contacts11H-bonds3
Artifact reasongeometry warning; 7 clashes; 1 protein clash
Residues
ALA209 ALA90 GLY214 GLY215 LYS211 LYS89 MET70 PRO187 PRO212 PRO213 TYR210

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

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 overlap5Native recall0.42
Jaccard0.28RMSD-
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
130 0.6710015680972891 -0.942234 -15.332 1 18 0 0.00 - - no Open
108 1.8147398157015295 -0.96444 -18.8902 3 11 5 0.42 - - 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 -18.890kcal/mol
Ligand efficiency (LE) -0.7871kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.054
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 24HA

Physicochemical properties

Molecular weight 343.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.11
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 18.07kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 2.57kcal/mol
Minimised FF energy -15.51kcal/mol

SASA & burial

✓ computed
SASA (unbound) 627.7Ų
Total solvent-accessible surface area of free ligand
BSA total 399.2Ų
Buried surface area upon binding
BSA apolar 312.9Ų
Hydrophobic contacts buried
BSA polar 86.3Ų
Polar contacts buried
Fraction buried 63.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3142.5Ų
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 4076.6Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1465.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)