FAIRMol

Z56902329

Pose ID 10633 Compound 3363 Pose 468

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 Z56902329
PDB6RB5

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native mixed SASA done
Strain ΔE
47.6 kcal/mol
Protein clashes
5
Internal clashes
5
Native overlap
contact recall 0.50, Jaccard 0.33
Burial
67%
Hydrophobic fit
83%
Reason: strain 47.6 kcal/mol
strain ΔE 47.6 kcal/mol 5 protein-contact clashes 5 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.693 kcal/mol/HA) ✓ Good fit quality (FQ -6.38) ✓ Good H-bonds (4 bonds) ✓ Deep burial (67% SASA buried) ✓ Lipophilic contacts well-matched (83%) ✗ Extreme strain energy (47.6 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (6)
Score
-18.018
kcal/mol
LE
-0.693
kcal/mol/HA
Fit Quality
-6.38
FQ (Leeson)
HAC
26
heavy atoms
MW
434
Da
LogP
3.90
cLogP
Final rank
3.3946
rank score
Inter norm
-0.939
normalised
Contacts
12
H-bonds 4
Strain ΔE
47.6 kcal/mol
SASA buried
67%
Lipo contact
83% BSA apolar/total
SASA unbound
635 Ų
Apolar buried
354 Ų

Interaction summary

HBD 3 HBA 1 HY 8 PI 0 CLASH 5

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 3.

PI · π–π interactions

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

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 overlap6Native recall0.50
Jaccard0.33RMSD-
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
348 0.8740691109670798 -0.941479 -19.4368 7 16 0 0.00 - - no Open
399 1.1577229792848076 -0.986813 -19.3868 11 15 0 0.00 - - no Open
362 1.8207036733733963 -1.05976 -19.1339 4 16 0 0.00 - - no Open
494 2.004621134921909 -0.964958 -17.5011 6 15 0 0.00 - - no Open
367 3.0861066535632085 -1.21974 -29.9558 8 15 0 0.00 - - no Open
468 3.394597286173792 -0.938909 -18.0178 4 12 6 0.50 - - 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 -18.018kcal/mol
Ligand efficiency (LE) -0.6930kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.385
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 26HA

Physicochemical properties

Molecular weight 434.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.90
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 47.65kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 114.82kcal/mol
Minimised FF energy 67.17kcal/mol

SASA & burial

✓ computed
SASA (unbound) 634.6Ų
Total solvent-accessible surface area of free ligand
BSA total 424.6Ų
Buried surface area upon binding
BSA apolar 353.9Ų
Hydrophobic contacts buried
BSA polar 70.7Ų
Polar contacts buried
Fraction buried 66.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 83.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3115.8Ų
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 1479.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)