FAIRMol

KB_Leish_127

Pose ID 9610 Compound 1281 Pose 124

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_Leish_127
PDB9IFF

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 strong SASA done
Strain ΔE
15.8 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.62, Jaccard 0.40
Burial
76%
Hydrophobic fit
86%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-0.897 kcal/mol/HA) ✓ Good fit quality (FQ -8.15) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (76% SASA buried) ✓ Lipophilic contacts well-matched (86%) ✗ Moderate strain (15.8 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (7)
Score
-22.424
kcal/mol
LE
-0.897
kcal/mol/HA
Fit Quality
-8.15
FQ (Leeson)
HAC
25
heavy atoms
MW
355
Da
LogP
4.11
cLogP
Strain ΔE
15.8 kcal/mol
SASA buried
76%
Lipo contact
86% BSA apolar/total
SASA unbound
630 Ų
Apolar buried
416 Ų

Interaction summary

HB 7 HY 24 PI 0 CLASH 1

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

Final rank2.947Score-22.424
Inter norm-0.972Intra norm0.064
Top1000noExcludedno
Contacts15H-bonds7
Artifact reasongeometry warning; 7 clashes; 2 protein clashes
Residues
ALA209 ALA90 ASN208 ASN91 LEU73 LYS211 LYS89 MET70 PRO187 PRO212 PRO213 TRP92 TYR210 TYR69 VAL88

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 overlap8Native recall0.62
Jaccard0.40RMSD-
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
131 0.20264515361431967 -0.94386 -22.1 0 18 0 0.00 - - no Open
149 2.3344907404766513 -1.06356 -25.4369 7 11 0 0.00 - - no Open
124 2.946625187207625 -0.972192 -22.4238 7 15 8 0.62 - - 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 -22.424kcal/mol
Ligand efficiency (LE) -0.8970kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.154
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 25HA

Physicochemical properties

Molecular weight 355.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.11
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 15.78kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 0.98kcal/mol
Minimised FF energy -14.80kcal/mol

SASA & burial

✓ computed
SASA (unbound) 630.2Ų
Total solvent-accessible surface area of free ligand
BSA total 482.0Ų
Buried surface area upon binding
BSA apolar 416.1Ų
Hydrophobic contacts buried
BSA polar 65.9Ų
Polar contacts buried
Fraction buried 76.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 86.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3018.2Ų
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 1528.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)