FAIRMol

Z426369012

Pose ID 11418 Compound 855 Pose 575

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 Z426369012
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
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
29.4 kcal/mol
Protein clashes
0
Internal clashes
10
Native overlap
contact recall 0.58, Jaccard 0.30, H-bond role recall 0.00
Burial
80%
Hydrophobic fit
80%
Reason: 10 internal clashes
10 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.836 kcal/mol/HA) ✓ Good fit quality (FQ -7.97) ✓ Good H-bonds (4 bonds) ✓ Deep burial (80% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ High strain energy (29.4 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-24.228
kcal/mol
LE
-0.836
kcal/mol/HA
Fit Quality
-7.97
FQ (Leeson)
HAC
29
heavy atoms
MW
405
Da
LogP
4.40
cLogP
Strain ΔE
29.4 kcal/mol
SASA buried
80%
Lipo contact
80% BSA apolar/total
SASA unbound
684 Ų
Apolar buried
440 Ų

Interaction summary

HB 4 HY 24 PI 2 CLASH 0

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

No clash · clashes detected for this pose.
Final rank3.050Score-24.228
Inter norm-0.877Intra norm0.041
Top1000noExcludedno
Contacts18H-bonds4
Artifact reasongeometry warning; 10 clashes; 2 protein clashes; moderate strain Δ 29.4
Residues
ALA284 ALA363 ARG287 CYS375 GLY197 GLY229 GLY286 GLY376 ILE199 LEU227 LEU332 MET333 PHE198 PHE230 SER200 SER364 THR374 VAL362

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 overlap7Native recall0.58
Jaccard0.30RMSD-
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
550 0.7089563717843353 -1.16107 -32.7603 7 17 0 0.00 0.00 - no Open
574 1.563273033931963 -0.894916 -24.9454 11 16 0 0.00 0.00 - no Open
570 1.8983530217649327 -0.895592 -25.6438 4 17 0 0.00 0.00 - no Open
540 2.188469065975241 -1.0946 -32.4734 8 16 0 0.00 0.00 - no Open
551 2.207343591774533 -0.891831 -26.4179 4 16 0 0.00 0.00 - no Open
552 2.6137459609030174 -0.787817 -13.6074 6 13 0 0.00 0.00 - no Open
549 2.8587233897033926 -0.913163 -23.9116 13 18 0 0.00 0.00 - no Open
575 3.0497306452736783 -0.876647 -24.2283 4 18 7 0.58 0.00 - no Current
579 3.14401003598703 -0.81951 -20.0537 7 14 0 0.00 0.00 - no Open
557 3.2521974787035832 -0.981282 -25.668 4 19 0 0.00 0.00 - no Open
564 3.7549715815477414 -1.09269 -33.0977 16 20 0 0.00 0.00 - no Open
549 4.546760674497128 -1.06745 -31.929 6 19 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 -24.228kcal/mol
Ligand efficiency (LE) -0.8355kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.975
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 405.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.40
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 29.39kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 137.81kcal/mol
Minimised FF energy 108.42kcal/mol

SASA & burial

✓ computed
SASA (unbound) 684.0Ų
Total solvent-accessible surface area of free ligand
BSA total 550.7Ų
Buried surface area upon binding
BSA apolar 439.6Ų
Hydrophobic contacts buried
BSA polar 111.0Ų
Polar contacts buried
Fraction buried 80.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 79.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6512.5Ų
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 2080.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)