FAIRMol

Z44305068

Pose ID 11442 Compound 2939 Pose 599

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 Z44305068
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 mixed SASA done
Strain ΔE
14.0 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.50, Jaccard 0.26, H-bond role recall 0.00
Burial
81%
Hydrophobic fit
75%
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-0.926 kcal/mol/HA) ✓ Good fit quality (FQ -8.63) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (81% SASA buried) ✓ Lipophilic contacts well-matched (75%) ✗ Moderate strain (14.0 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (7)
Score
-24.990
kcal/mol
LE
-0.926
kcal/mol/HA
Fit Quality
-8.63
FQ (Leeson)
HAC
27
heavy atoms
MW
401
Da
LogP
3.74
cLogP
Strain ΔE
14.0 kcal/mol
SASA buried
81%
Lipo contact
75% BSA apolar/total
SASA unbound
607 Ų
Apolar buried
369 Ų

Interaction summary

HB 8 HY 23 PI 1 CLASH 2
Final rank3.831Score-24.990
Inter norm-0.915Intra norm-0.011
Top1000noExcludedno
Contacts17H-bonds8
Artifact reasongeometry warning; 7 clashes; 3 protein clashes
Residues
ALA284 ARG228 ARG287 ARG331 FAD501 GLY196 GLY197 GLY286 ILE199 ILE226 ILE285 LEU227 LEU332 LEU334 MET333 PHE198 TYR221

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 overlap6Native recall0.50
Jaccard0.26RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
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
569 0.36532912233574083 -1.30221 -32.7212 7 19 0 0.00 0.00 - no Open
569 2.3737859879803827 -0.913048 -17.8893 7 13 0 0.00 0.00 - no Open
589 2.791741137083932 -1.08787 -23.2147 6 17 0 0.00 0.00 - no Open
599 3.8312358695408832 -0.914807 -24.99 8 17 6 0.50 0.00 - no Current
562 3.9390179097197437 -1.12619 -30.2577 9 19 0 0.00 0.00 - no Open
598 4.131557866139451 -0.953971 -23.907 11 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 -24.990kcal/mol
Ligand efficiency (LE) -0.9256kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.635
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 400.8Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.74
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 14.03kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -53.94kcal/mol
Minimised FF energy -67.97kcal/mol

SASA & burial

✓ computed
SASA (unbound) 606.7Ų
Total solvent-accessible surface area of free ligand
BSA total 493.4Ų
Buried surface area upon binding
BSA apolar 368.6Ų
Hydrophobic contacts buried
BSA polar 124.8Ų
Polar contacts buried
Fraction buried 81.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 74.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6408.1Ų
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 2111.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)