FAIRMol

Z1546616194

Pose ID 11484 Compound 1548 Pose 641

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 Z1546616194
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 medium Native mixed SASA done
Strain ΔE
35.9 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.25, Jaccard 0.15, H-bond role recall 0.00
Burial
79%
Hydrophobic fit
61%
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 (-1.249 kcal/mol/HA) ✓ Good fit quality (FQ -10.24) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (79% SASA buried) ✓ Lipophilic contacts well-matched (61%) ✗ Very high strain energy (35.9 kcal/mol) ✗ Geometry warnings
Score
-23.737
kcal/mol
LE
-1.249
kcal/mol/HA
Fit Quality
-10.24
FQ (Leeson)
HAC
19
heavy atoms
MW
287
Da
LogP
-0.05
cLogP
Strain ΔE
35.9 kcal/mol
SASA buried
79%
Lipo contact
61% BSA apolar/total
SASA unbound
473 Ų
Apolar buried
229 Ų

Interaction summary

HB 8 HY 9 PI 1 CLASH 2
Final rank2.612Score-23.737
Inter norm-1.188Intra norm-0.061
Top1000noExcludedno
Contacts11H-bonds8
Artifact reasongeometry warning; 4 clashes; 2 protein clashes; high strain Δ 35.9
Residues
ALA284 ARG287 FAD501 GLY197 GLY286 ILE199 ILE285 LEU334 MET333 PHE198 SER200

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 overlap3Native recall0.25
Jaccard0.15RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue1HB residue recall1.00

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
627 -0.6891375840801766 -1.60782 -29.4409 6 13 0 0.00 0.00 - no Open
627 -0.2275490505661526 -1.42693 -23.5246 9 10 0 0.00 0.00 - no Open
624 0.17150852762289925 -1.47677 -27.9887 11 13 0 0.00 0.00 - no Open
641 2.6118042954235654 -1.18806 -23.737 8 11 3 0.25 0.00 - no Current
628 3.0283982778986456 -1.41403 -28.0679 10 17 0 0.00 0.00 - no Open
651 3.911677237867414 -1.6429 -33.3309 11 15 0 0.00 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 -23.737kcal/mol
Ligand efficiency (LE) -1.2493kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.240
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 19HA

Physicochemical properties

Molecular weight 287.2Da
Lipinski: ≤ 500 Da
LogP (cLogP) -0.05
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 35.94kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 17.19kcal/mol
Minimised FF energy -18.75kcal/mol

SASA & burial

✓ computed
SASA (unbound) 473.3Ų
Total solvent-accessible surface area of free ligand
BSA total 375.8Ų
Buried surface area upon binding
BSA apolar 228.9Ų
Hydrophobic contacts buried
BSA polar 146.9Ų
Polar contacts buried
Fraction buried 79.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 60.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6308.2Ų
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 8063.1Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 2069.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)