FAIRMol

Z57281539

Pose ID 11494 Compound 187 Pose 651

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 Z57281539
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 but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
11.4 kcal/mol
Protein clashes
0
Internal clashes
6
Native overlap
contact recall 0.58, Jaccard 0.44, H-bond role recall 1.00
Burial
80%
Hydrophobic fit
84%
Reason: 6 internal clashes
6 intramolecular clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.021 kcal/mol/HA) ✓ Good fit quality (FQ -8.71) ✓ Good H-bonds (4 bonds) ✓ Deep burial (80% SASA buried) ✓ Lipophilic contacts well-matched (84%) ✗ Moderate strain (11.4 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (6)
Score
-21.442
kcal/mol
LE
-1.021
kcal/mol/HA
Fit Quality
-8.71
FQ (Leeson)
HAC
21
heavy atoms
MW
301
Da
LogP
4.12
cLogP
Strain ΔE
11.4 kcal/mol
SASA buried
80%
Lipo contact
84% BSA apolar/total
SASA unbound
510 Ų
Apolar buried
341 Ų

Interaction summary

HB 4 HY 17 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 rank2.272Score-21.442
Inter norm-1.078Intra norm0.057
Top1000noExcludedno
Contacts11H-bonds4
Artifact reasongeometry warning; 6 clashes; 2 protein clashes
Residues
ARG228 ARG287 ARG331 GLY196 GLY197 LEU227 LEU332 LEU334 MET333 PHE198 PHE230

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
Jaccard0.44RMSD-
HB strict1Strict recall1.00
HB same residue+role1HB role recall1.00
HB same residue1HB residue recall1.00

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
635 0.7797543063660407 -1.03864 -23.8267 6 12 0 0.00 0.00 - no Open
629 1.4429483420959466 -1.27465 -24.7705 4 16 0 0.00 0.00 - no Open
651 2.2720410504418993 -1.07823 -21.4419 4 11 7 0.58 1.00 - no Current
651 3.201970499986924 -1.26973 -25.8745 6 16 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 -21.442kcal/mol
Ligand efficiency (LE) -1.0210kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.709
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 21HA

Physicochemical properties

Molecular weight 300.7Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.12
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 11.42kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 59.75kcal/mol
Minimised FF energy 48.33kcal/mol

SASA & burial

✓ computed
SASA (unbound) 510.0Ų
Total solvent-accessible surface area of free ligand
BSA total 407.7Ų
Buried surface area upon binding
BSA apolar 341.4Ų
Hydrophobic contacts buried
BSA polar 66.3Ų
Polar contacts buried
Fraction buried 79.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 83.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6402.6Ų
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 2085.6Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)