FAIRMol

TC391

Pose ID 9851 Compound 477 Pose 365

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T15
T. brucei TR (Dimer cleft site) T. brucei Dimer cleft site
Ligand TC391
PDB9IFF

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
18.6 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.69, Jaccard 0.45
Burial
72%
Hydrophobic fit
80%
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 (-0.760 kcal/mol/HA) ✓ Good fit quality (FQ -7.33) ✓ Good H-bonds (5 bonds) ✓ Deep burial (72% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ Moderate strain (18.6 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (13)
Score
-22.793
kcal/mol
LE
-0.760
kcal/mol/HA
Fit Quality
-7.33
FQ (Leeson)
HAC
30
heavy atoms
MW
428
Da
LogP
4.90
cLogP
Strain ΔE
18.6 kcal/mol
SASA buried
72%
Lipo contact
80% BSA apolar/total
SASA unbound
689 Ų
Apolar buried
394 Ų

Interaction summary

HB 5 HY 24 PI 1 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 rank3.609Score-22.793
Inter norm-0.888Intra norm0.129
Top1000noExcludedno
Contacts16H-bonds5
Artifact reasongeometry warning; 13 clashes; 2 protein clashes
Residues
ALA209 ALA67 ALA90 GLN68 GLY214 GLY215 GLY66 LEU73 LYS211 LYS89 MET70 PRO212 PRO213 TYR210 TYR69 VAL88

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name9IFFContacts13
PoseOpen native poseHB0
IFP residues
ALA209 ARG74 ASN208 GLY214 GLY215 GLY85 LEU73 LYS211 MET70 PHE83 PRO212 PRO213 VAL88
Current overlap9Native recall0.69
Jaccard0.45RMSD-
HB strict0Strict recall-
HB same residue+role0HB role recall-
HB same residue0HB residue recall-

Protein summary

489 residues
Protein targetT15Atoms7420
Residues489Chains1
Residue summaryVAL:768; LYS:704; LEU:703; ILE:532; GLU:450; THR:434; ARG:408; PHE:400; ALA:390; ASN:350; PRO:350; GLY:336; SER:319; TYR:294; ASP:264; MET:204

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 - - no Open
280 2.0200071560901884 -0.858313 -23.3297 3 18 0 0.00 - - no Open
274 2.045457668570819 -0.972567 -23.9357 6 14 0 0.00 - - no Open
166 2.6403647932585232 -0.945898 -27.3365 11 17 0 0.00 - - no Open
252 2.7011556067534275 -0.828299 -17.981 8 15 0 0.00 - - no Open
301 2.747981289497286 -0.894508 -23.189 4 18 0 0.00 - - no Open
164 2.7801382971405904 -0.980978 -23.9123 8 18 0 0.00 - - no Open
259 2.982627401034303 -0.855249 -21.6476 7 16 0 0.00 - - no Open
365 3.608801145484245 -0.888327 -22.7927 5 16 9 0.69 - - no Current
221 3.673195067444817 -1.01885 -23.2926 9 17 0 0.00 - - no Open
198 3.840362266733292 -0.951165 -20.9586 6 18 0 0.00 - - no Open
337 4.12591610565581 -0.761025 -21.4826 7 13 0 0.00 - - no Open
183 4.337579311682156 -1.02771 -24.7008 7 20 0 0.00 - - no Open
221 4.478220481332508 -1.00163 -22.7724 5 19 0 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 -22.793kcal/mol
Ligand efficiency (LE) -0.7598kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.329
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) 18.60kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 77.58kcal/mol
Minimised FF energy 58.98kcal/mol

SASA & burial

✓ computed
SASA (unbound) 689.4Ų
Total solvent-accessible surface area of free ligand
BSA total 494.3Ų
Buried surface area upon binding
BSA apolar 393.5Ų
Hydrophobic contacts buried
BSA polar 100.8Ų
Polar contacts buried
Fraction buried 71.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 79.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3034.2Ų
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 4005.2Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1519.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)