FAIRMol

Z56935326

Pose ID 11476 Compound 1015 Pose 633

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 Z56935326
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
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
12.8 kcal/mol
Protein clashes
8
Internal clashes
9
Native overlap
contact recall 0.75, Jaccard 0.39, H-bond role recall 0.00
Burial
80%
Hydrophobic fit
94%
Reason: 9 internal clashes
8 protein-contact clashes 9 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.702 kcal/mol/HA) ✓ Good fit quality (FQ -7.13) ✓ Good H-bonds (3 bonds) ✓ Deep burial (80% SASA buried) ✓ Lipophilic contacts well-matched (94%) ✗ Moderate strain (12.8 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (20)
Score
-25.264
kcal/mol
LE
-0.702
kcal/mol/HA
Fit Quality
-7.13
FQ (Leeson)
HAC
36
heavy atoms
MW
466
Da
LogP
7.87
cLogP
Strain ΔE
12.8 kcal/mol
SASA buried
80%
Lipo contact
94% BSA apolar/total
SASA unbound
780 Ų
Apolar buried
587 Ų

Interaction summary

HB 3 HY 24 PI 3 CLASH 9
Final rank3.987Score-25.264
Inter norm-0.658Intra norm-0.043
Top1000noExcludedno
Contacts20H-bonds3
Artifact reasongeometry warning; 20 clashes; 1 protein clash; 1 cofactor-context clash
Residues
ALA365 ARG228 FAD501 GLY196 GLY197 GLY229 GLY376 ILE378 LEU227 LEU332 LEU334 LEU377 PHE198 PHE230 SER364 TYR221 VAL366 VAL381 HIS461 VAL460

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 overlap9Native recall0.75
Jaccard0.39RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

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
637 1.8836013452383191 -0.660271 -24.7592 1 16 0 0.00 0.00 - no Open
620 3.378715481140251 -0.78601 -24.5487 3 14 0 0.00 0.00 - no Open
629 3.4909215645034988 -0.560552 -18.2071 4 14 0 0.00 0.00 - no Open
618 3.5438463176472115 -0.703934 -22.6562 3 19 0 0.00 0.00 - no Open
632 3.949263008578241 -0.609384 -21.8707 4 9 0 0.00 0.00 - no Open
633 3.986665341300043 -0.658461 -25.2639 3 20 9 0.75 0.00 - no Current

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -25.264kcal/mol
Ligand efficiency (LE) -0.7018kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.133
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 36HA

Physicochemical properties

Molecular weight 465.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 7.87
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 12.81kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 94.65kcal/mol
Minimised FF energy 81.84kcal/mol

SASA & burial

✓ computed
SASA (unbound) 779.9Ų
Total solvent-accessible surface area of free ligand
BSA total 626.3Ų
Buried surface area upon binding
BSA apolar 586.6Ų
Hydrophobic contacts buried
BSA polar 39.6Ų
Polar contacts buried
Fraction buried 80.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 93.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6685.3Ų
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 2115.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)