FAIRMol

ulfkktlib_693

Pose ID 10466 Compound 3138 Pose 301

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 ulfkktlib_693
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
21.9 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.75, Jaccard 0.50
Burial
80%
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 (-0.807 kcal/mol/HA) ✓ Good fit quality (FQ -7.70) ✓ Deep burial (80% SASA buried) ✓ Lipophilic contacts well-matched (90%) ✗ High strain energy (21.9 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Many internal clashes (12)
Score
-23.394
kcal/mol
LE
-0.807
kcal/mol/HA
Fit Quality
-7.70
FQ (Leeson)
HAC
29
heavy atoms
MW
386
Da
LogP
2.41
cLogP
Strain ΔE
21.9 kcal/mol
SASA buried
80%
Lipo contact
90% BSA apolar/total
SASA unbound
660 Ų
Apolar buried
473 Ų

Interaction summary

HB 1 HY 24 PI 1 CLASH 1
Final rank0.830Score-23.394
Inter norm-0.869Intra norm0.062
Top1000noExcludedno
Contacts15H-bonds1
Artifact reasongeometry warning; 12 clashes; 2 protein contact clashes; moderate strain Δ 21.9
Residues
ALA209 ALA67 ALA90 ARG74 GLY66 LEU73 LYS211 LYS89 MET70 PHE83 PRO212 PRO213 TYR210 TYR69 VAL88

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 overlap9Native recall0.75
Jaccard0.50RMSD-
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

Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
301 0.8299988440391093 -0.868696 -23.3941 1 15 9 0.75 - - no Current
309 1.2385326888611823 -0.833339 -23.4234 1 15 0 0.00 - - no Open
192 2.5621721981230094 -1.16385 -29.9358 7 20 0 0.00 - - no Open
191 2.6900465268149696 -0.791766 -20.1184 4 12 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 -23.394kcal/mol
Ligand efficiency (LE) -0.8067kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.700
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 386.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.41
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 21.89kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 78.84kcal/mol
Minimised FF energy 56.95kcal/mol

SASA & burial

✓ computed
SASA (unbound) 659.9Ų
Total solvent-accessible surface area of free ligand
BSA total 526.8Ų
Buried surface area upon binding
BSA apolar 473.4Ų
Hydrophobic contacts buried
BSA polar 53.4Ų
Polar contacts buried
Fraction buried 79.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 89.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3187.9Ų
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 1446.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)