FAIRMol

Z44848695

Pose ID 11310 Compound 1783 Pose 467

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 Z44848695
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
10.3 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.67, Jaccard 0.35, H-bond role recall 1.00
Burial
80%
Hydrophobic fit
79%
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 (-0.680 kcal/mol/HA) ✓ Good fit quality (FQ -6.75) ✓ Good H-bonds (5 bonds) ✓ Deep burial (80% SASA buried) ✓ Lipophilic contacts well-matched (79%) ✗ Moderate strain (10.3 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (6) ✗ Many internal clashes (12)
Score
-22.455
kcal/mol
LE
-0.680
kcal/mol/HA
Fit Quality
-6.75
FQ (Leeson)
HAC
33
heavy atoms
MW
437
Da
LogP
4.18
cLogP
Strain ΔE
10.3 kcal/mol
SASA buried
80%
Lipo contact
79% BSA apolar/total
SASA unbound
730 Ų
Apolar buried
461 Ų

Interaction summary

HB 5 HY 16 PI 1 CLASH 1
Final rank1.638Score-22.455
Inter norm-0.719Intra norm0.039
Top1000noExcludedno
Contacts19H-bonds5
Artifact reasongeometry warning; 12 clashes; 6 protein contact clashes
Residues
ARG228 ARG287 ARG331 ARG361 CYS375 GLY229 GLY286 GLY376 HIS359 HIS428 ILE378 LEU332 LEU377 MET333 PHE230 SER364 THR360 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 overlap8Native recall0.67
Jaccard0.35RMSD-
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
418 1.2278842288864344 -0.857079 -20.976 6 16 0 0.00 0.00 - no Open
467 1.6375834937838496 -0.71896 -22.4551 5 19 8 0.67 1.00 - no Current
407 2.1080698988494566 -0.749058 -19.6099 4 21 0 0.00 0.00 - no Open
386 3.6636739084782377 -0.87546 -31.76 6 13 0 0.00 0.00 - no Open
396 3.9920880200456956 -0.987515 -21.5464 9 20 0 0.00 0.00 - no Open
440 4.429876385133127 -0.763952 -23.7542 5 15 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 -22.455kcal/mol
Ligand efficiency (LE) -0.6805kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.751
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 33HA

Physicochemical properties

Molecular weight 437.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.18
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 10.34kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 109.44kcal/mol
Minimised FF energy 99.11kcal/mol

SASA & burial

✓ computed
SASA (unbound) 730.4Ų
Total solvent-accessible surface area of free ligand
BSA total 581.6Ų
Buried surface area upon binding
BSA apolar 461.1Ų
Hydrophobic contacts buried
BSA polar 120.5Ų
Polar contacts buried
Fraction buried 79.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 79.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6524.1Ų
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 2127.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)