FAIRMol

TC391

Pose ID 11102 Compound 477 Pose 259

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 TC391
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 medium Native strong SASA done
Strain ΔE
32.4 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.83, Jaccard 0.56, H-bond role recall 0.00
Burial
80%
Hydrophobic fit
81%
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.722 kcal/mol/HA) ✓ Good fit quality (FQ -6.96) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (80% SASA buried) ✓ Lipophilic contacts well-matched (81%) ✗ Very high strain energy (32.4 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (14)
Score
-21.648
kcal/mol
LE
-0.722
kcal/mol/HA
Fit Quality
-6.96
FQ (Leeson)
HAC
30
heavy atoms
MW
428
Da
LogP
4.90
cLogP
Strain ΔE
32.4 kcal/mol
SASA buried
80%
Lipo contact
81% BSA apolar/total
SASA unbound
658 Ų
Apolar buried
426 Ų

Interaction summary

HB 7 HY 21 PI 2 CLASH 2
Final rank2.983Score-21.648
Inter norm-0.855Intra norm0.134
Top1000noExcludedno
Contacts16H-bonds7
Artifact reasongeometry warning; 14 clashes; 1 protein clash; high strain Δ 32.3
Residues
ALA363 ARG228 ARG331 ARG361 CYS375 GLY229 GLY376 HIS359 LEU332 LEU334 MET333 PHE198 PHE230 SER364 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 overlap10Native recall0.83
Jaccard0.56RMSD-
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
232 1.8331583620386547 -1.27971 -26.7454 4 18 0 0.00 0.00 - no Open
280 2.0200071560901884 -0.858313 -23.3297 3 18 0 0.00 0.00 - no Open
274 2.045457668570819 -0.972567 -23.9357 6 14 0 0.00 0.00 - no Open
166 2.6403647932585232 -0.945898 -27.3365 11 17 0 0.00 0.00 - no Open
252 2.7011556067534275 -0.828299 -17.981 8 15 0 0.00 0.00 - no Open
301 2.747981289497286 -0.894508 -23.189 4 18 0 0.00 0.00 - no Open
164 2.7801382971405904 -0.980978 -23.9123 8 18 0 0.00 0.00 - no Open
259 2.982627401034303 -0.855249 -21.6476 7 16 10 0.83 0.00 - no Current
365 3.608801145484245 -0.888327 -22.7927 5 16 0 0.00 0.00 - no Open
221 3.673195067444817 -1.01885 -23.2926 9 17 0 0.00 0.00 - no Open
198 3.840362266733292 -0.951165 -20.9586 6 18 0 0.00 0.00 - no Open
337 4.12591610565581 -0.761025 -21.4826 7 13 0 0.00 0.00 - no Open
183 4.337579311682156 -1.02771 -24.7008 7 20 0 0.00 0.00 - no Open
221 4.478220481332508 -1.00163 -22.7724 5 19 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 -21.648kcal/mol
Ligand efficiency (LE) -0.7216kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.961
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 427.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.90
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 32.36kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 86.59kcal/mol
Minimised FF energy 54.24kcal/mol

SASA & burial

✓ computed
SASA (unbound) 658.5Ų
Total solvent-accessible surface area of free ligand
BSA total 526.2Ų
Buried surface area upon binding
BSA apolar 426.3Ų
Hydrophobic contacts buried
BSA polar 99.9Ų
Polar contacts buried
Fraction buried 79.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 81.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6529.3Ų
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 2068.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)