FAIRMol

Z27504791

Pose ID 11392 Compound 455 Pose 549

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 Z27504791
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 high Native strong SASA done
Strain ΔE
23.5 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.58, Jaccard 0.32, H-bond role recall 0.00
Burial
79%
Hydrophobic fit
76%
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 (-0.850 kcal/mol/HA) ✓ Good fit quality (FQ -8.02) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (79% SASA buried) ✓ Lipophilic contacts well-matched (76%) ✗ High strain energy (23.5 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)
Score
-23.799
kcal/mol
LE
-0.850
kcal/mol/HA
Fit Quality
-8.02
FQ (Leeson)
HAC
28
heavy atoms
MW
400
Da
LogP
1.38
cLogP
Strain ΔE
23.5 kcal/mol
SASA buried
79%
Lipo contact
76% BSA apolar/total
SASA unbound
677 Ų
Apolar buried
406 Ų

Interaction summary

HB 9 HY 14 PI 2 CLASH 1

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

Final rank3.688Score-23.799
Inter norm-0.894Intra norm0.044
Top1000noExcludedno
Contacts17H-bonds9
Artifact reasongeometry warning; 9 clashes; 2 protein clashes; moderate strain Δ 23.5
Residues
ALA284 ALA363 ARG228 ARG287 CYS375 GLY197 GLY229 GLY286 GLY376 HIS428 ILE199 LEU332 PHE198 PHE230 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
Jaccard0.32RMSD-
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
554 2.6476724389697357 -0.920456 -26.2372 5 20 0 0.00 0.00 - no Open
569 2.791537985089909 -0.869779 -23.8677 7 11 0 0.00 0.00 - no Open
504 3.3602686908640718 -1.04839 -25.9211 9 16 0 0.00 0.00 - no Open
514 3.463700765775954 -0.916212 -22.9905 7 18 0 0.00 0.00 - no Open
549 3.687891063104616 -0.894262 -23.7986 9 17 7 0.58 0.00 - no Current
551 4.325699686745317 -0.778701 -23.0924 5 12 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 -23.799kcal/mol
Ligand efficiency (LE) -0.8499kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.024
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 28HA

Physicochemical properties

Molecular weight 400.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.38
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 23.54kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -138.37kcal/mol
Minimised FF energy -161.91kcal/mol

SASA & burial

✓ computed
SASA (unbound) 677.0Ų
Total solvent-accessible surface area of free ligand
BSA total 536.2Ų
Buried surface area upon binding
BSA apolar 406.0Ų
Hydrophobic contacts buried
BSA polar 130.3Ų
Polar contacts buried
Fraction buried 79.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 75.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6488.4Ų
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)