FAIRMol

Z21488718

Pose ID 11328 Compound 2016 Pose 485

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 Z21488718
PDB5S9T

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Promising SASA cached
Promising and worth follow-up
Binding strong Geometry high Native strong SASA done
Strain ΔE
9.3 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.67, Jaccard 0.44, H-bond role recall 1.00
Burial
87%
Hydrophobic fit
66%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-0.951 kcal/mol/HA) ✓ Good fit quality (FQ -8.11) ✓ Good H-bonds (4 bonds) ✓ Deep burial (87% SASA buried) ✓ Lipophilic contacts well-matched (66%) ✗ Moderate strain (9.3 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (7)
Score
-19.966
kcal/mol
LE
-0.951
kcal/mol/HA
Fit Quality
-8.11
FQ (Leeson)
HAC
21
heavy atoms
MW
294
Da
LogP
3.30
cLogP
Strain ΔE
9.3 kcal/mol
SASA buried
87%
Lipo contact
66% BSA apolar/total
SASA unbound
505 Ų
Apolar buried
288 Ų

Interaction summary

HB 4 HY 20 PI 3 CLASH 1
Final rank1.486Score-19.966
Inter norm-1.059Intra norm0.108
Top1000noExcludedno
Contacts14H-bonds4
Artifact reasongeometry warning; 7 clashes; 1 protein clash
Residues
ALA284 ARG287 ARG331 GLY197 GLY286 ILE199 LEU332 LEU334 MET333 PHE198 PHE230 SER200 SER364 VAL366

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
Jaccard0.44RMSD-
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
402 1.2167690104404725 -1.34895 -25.6842 5 11 0 0.00 0.00 - no Open
485 1.4860261846578509 -1.05884 -19.9656 4 14 8 0.67 1.00 - no Current
425 2.519301932614363 -1.38873 -28.5459 10 15 0 0.00 0.00 - no Open
418 3.3781155952566757 -1.17369 -21.3034 12 18 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 -19.966kcal/mol
Ligand efficiency (LE) -0.9507kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.110
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 21HA

Physicochemical properties

Molecular weight 294.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.30
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 9.32kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 18.49kcal/mol
Minimised FF energy 9.17kcal/mol

SASA & burial

✓ computed
SASA (unbound) 504.6Ų
Total solvent-accessible surface area of free ligand
BSA total 437.7Ų
Buried surface area upon binding
BSA apolar 287.6Ų
Hydrophobic contacts buried
BSA polar 150.1Ų
Polar contacts buried
Fraction buried 86.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 65.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6316.2Ų
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 2071.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)