FAIRMol

Z17189141

Pose ID 11380 Compound 1243 Pose 537

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 Z17189141
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 strong SASA done
Strain ΔE
30.3 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.75, Jaccard 0.47, H-bond role recall 1.00
Burial
81%
Hydrophobic fit
78%
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 (-0.752 kcal/mol/HA) ✓ Good fit quality (FQ -7.39) ✓ Good H-bonds (5 bonds) ✓ Deep burial (81% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ Very high strain energy (30.3 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (8)
Score
-24.055
kcal/mol
LE
-0.752
kcal/mol/HA
Fit Quality
-7.39
FQ (Leeson)
HAC
32
heavy atoms
MW
452
Da
LogP
3.18
cLogP
Strain ΔE
30.3 kcal/mol
SASA buried
81%
Lipo contact
78% BSA apolar/total
SASA unbound
722 Ų
Apolar buried
457 Ų

Interaction summary

HB 5 HY 24 PI 1 CLASH 1
Final rank3.326Score-24.055
Inter norm-0.731Intra norm-0.020
Top1000noExcludedno
Contacts16H-bonds5
Artifact reasongeometry warning; 8 clashes; 2 protein clashes; moderate strain Δ 29.7
Residues
ARG287 ARG331 ASP330 CYS375 GLY197 GLY229 GLY376 ILE199 LEU332 LEU334 MET333 PHE198 PHE230 SER364 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 overlap9Native recall0.75
Jaccard0.47RMSD-
HB strict1Strict recall1.00
HB same residue+role1HB role recall1.00
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
521 2.1374221202551658 -0.916476 -29.3885 3 15 0 0.00 0.00 - no Open
537 2.3560042920947692 -0.703586 -23.3663 3 10 0 0.00 0.00 - no Open
509 3.234435810672808 -0.759892 -21.9245 7 12 0 0.00 0.00 - no Open
537 3.326461527045995 -0.731352 -24.0553 5 16 9 0.75 1.00 - 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 -24.055kcal/mol
Ligand efficiency (LE) -0.7517kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.393
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 32HA

Physicochemical properties

Molecular weight 452.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.18
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 30.30kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -16.34kcal/mol
Minimised FF energy -46.63kcal/mol

SASA & burial

✓ computed
SASA (unbound) 722.1Ų
Total solvent-accessible surface area of free ligand
BSA total 587.5Ų
Buried surface area upon binding
BSA apolar 456.6Ų
Hydrophobic contacts buried
BSA polar 130.9Ų
Polar contacts buried
Fraction buried 81.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 77.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6543.0Ų
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 2077.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)