FAIRMol

Z68347375

Pose ID 11369 Compound 1338 Pose 526

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 Z68347375
PDB5S9T

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 strong SASA done
Strain ΔE
46.5 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.92, Jaccard 0.58, H-bond role recall 0.00
Burial
78%
Hydrophobic fit
77%
Reason: strain 46.5 kcal/mol
strain ΔE 46.5 kcal/mol 2 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.829 kcal/mol/HA) ✓ Good fit quality (FQ -7.92) ✓ Good H-bonds (4 bonds) ✓ Deep burial (78% SASA buried) ✓ Lipophilic contacts well-matched (77%) ✗ Extreme strain energy (46.5 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (17)
Score
-24.052
kcal/mol
LE
-0.829
kcal/mol/HA
Fit Quality
-7.92
FQ (Leeson)
HAC
29
heavy atoms
MW
384
Da
LogP
3.08
cLogP
Strain ΔE
46.5 kcal/mol
SASA buried
78%
Lipo contact
77% BSA apolar/total
SASA unbound
652 Ų
Apolar buried
390 Ų

Interaction summary

HB 4 HY 22 PI 2 CLASH 2

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

Final rank4.210Score-24.052
Inter norm-0.781Intra norm-0.049
Top1000noExcludedno
Contacts18H-bonds4
Artifact reasongeometry warning; 17 clashes; 2 protein clashes; high strain Δ 46.5
Residues
ALA363 ALA365 ARG331 ARG361 CYS375 GLY229 GLY376 HIS359 LEU332 LEU334 MET333 PHE198 PHE230 SER364 THR360 THR374 VAL362 VAL366

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 overlap11Native recall0.92
Jaccard0.58RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
490 1.7537992888862641 -1.02991 -31.929 9 16 0 0.00 0.00 - no Open
510 2.7776297499552585 -0.913277 -24.5256 6 12 0 0.00 0.00 - no Open
490 3.0102673198467875 -1.09437 -36.7781 6 14 0 0.00 0.00 - no Open
476 3.201813221844428 -1.11372 -39.2841 11 17 0 0.00 0.00 - no Open
463 3.371347263661328 -1.15929 -38.3001 5 16 0 0.00 0.00 - no Open
492 3.58544371075322 -1.07046 -34.4741 7 21 0 0.00 0.00 - no Open
495 3.7879791106918894 -0.807385 -24.528 7 15 0 0.00 0.00 - no Open
526 4.210215324924119 -0.780771 -24.0519 4 18 11 0.92 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 -24.052kcal/mol
Ligand efficiency (LE) -0.8294kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.917
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 384.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.08
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 46.53kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 121.14kcal/mol
Minimised FF energy 74.61kcal/mol

SASA & burial

✓ computed
SASA (unbound) 652.3Ų
Total solvent-accessible surface area of free ligand
BSA total 506.0Ų
Buried surface area upon binding
BSA apolar 390.0Ų
Hydrophobic contacts buried
BSA polar 116.0Ų
Polar contacts buried
Fraction buried 77.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 77.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6490.1Ų
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 2087.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)