FAIRMol

Z56798284

Pose ID 11311 Compound 688 Pose 468

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T17
T. brucei TR (Doorstop site) T. brucei Doorstop site
Ligand Z56798284
PDB5S9T

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
24.6 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.67, Jaccard 0.40, H-bond role recall 0.00
Burial
72%
Hydrophobic fit
78%
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.666 kcal/mol/HA) ✓ Good fit quality (FQ -6.43) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (72% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ High strain energy (24.6 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (14)
Score
-19.990
kcal/mol
LE
-0.666
kcal/mol/HA
Fit Quality
-6.43
FQ (Leeson)
HAC
30
heavy atoms
MW
396
Da
LogP
4.43
cLogP
Strain ΔE
24.6 kcal/mol
SASA buried
72%
Lipo contact
78% BSA apolar/total
SASA unbound
677 Ų
Apolar buried
381 Ų

Interaction summary

HB 9 HY 10 PI 1 CLASH 2
Final rank4.755Score-19.990
Inter norm-0.756Intra norm0.090
Top1000noExcludedno
Contacts16H-bonds9
Artifact reasongeometry warning; 14 clashes; 3 protein clashes; moderate strain Δ 24.6
Residues
ARG228 ARG331 ARG361 CYS375 GLY229 GLY376 HIS359 ILE378 LEU332 LEU377 MET333 PHE230 SER364 THR360 THR374 VAL362

Protein summary

1033 residues
Protein targetT17Atoms15160
Residues1033Chains2
Residue summaryVAL:1536; LEU:1387; LYS:1386; ILE:1064; GLU:900; THR:868; ARG:816; PHE:800; ALA:780; ASN:700; PRO:686; GLY:672; SER:616; TYR:588; ASP:528; MET:408

Receptor context

2 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 2 Excluded HETATM 0
Kept cofactors / ions
A:FAD501 B:FAD501

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name5S9TContacts12
PoseOpen native poseHB0
IFP residues
ALA365 ARG228 ARG331 GLY229 LEU332 LEU334 MET333 PHE198 PHE230 SER364 THR374 VAL366
Current overlap8Native recall0.67
Jaccard0.40RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

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
479 0.6279445494347249 -0.84408 -21.9705 3 20 0 0.00 0.00 - no Open
406 0.915129823933346 -0.83686 -13.244 3 18 0 0.00 0.00 - no Open
449 1.908233052533173 -0.74441 -18.4215 2 15 0 0.00 0.00 - no Open
431 4.433335430960952 -0.660659 -19.3115 7 13 0 0.00 0.00 - no Open
468 4.754749031571437 -0.756172 -19.9896 9 16 8 0.67 0.00 - 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 -19.990kcal/mol
Ligand efficiency (LE) -0.6663kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.428
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 396.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.43
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 24.57kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 166.20kcal/mol
Minimised FF energy 141.64kcal/mol

SASA & burial

✓ computed
SASA (unbound) 676.7Ų
Total solvent-accessible surface area of free ligand
BSA total 489.6Ų
Buried surface area upon binding
BSA apolar 381.4Ų
Hydrophobic contacts buried
BSA polar 108.2Ų
Polar contacts buried
Fraction buried 72.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 77.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6483.9Ų
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 8063.1Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 2147.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)