FAIRMol

TC391

Pose ID 7635 Compound 477 Pose 183

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T12
T. brucei R5P T. brucei
Ligand TC391
PDB6FXS

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
24.8 kcal/mol
Protein clashes
0
Internal clashes
14
Native overlap
contact recall 0.94, Jaccard 0.71, H-bond role recall 0.40
Burial
78%
Hydrophobic fit
78%
Reason: 14 internal clashes
14 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.823 kcal/mol/HA) ✓ Good fit quality (FQ -7.94) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (78% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ High strain energy (24.8 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (14)
Score
-24.701
kcal/mol
LE
-0.823
kcal/mol/HA
Fit Quality
-7.94
FQ (Leeson)
HAC
30
heavy atoms
MW
428
Da
LogP
4.90
cLogP
Strain ΔE
24.8 kcal/mol
SASA buried
78%
Lipo contact
78% BSA apolar/total
SASA unbound
683 Ų
Apolar buried
419 Ų

Interaction summary

HB 7 HY 9 PI 5 CLASH 0
Final rank4.338Score-24.701
Inter norm-1.028Intra norm0.204
Top1000noExcludedno
Contacts20H-bonds7
Artifact reasongeometry warning; 14 clashes; 3 protein clashes; moderate strain Δ 22.8
Residues
ARG140 ARG144 ASN106 GLN104 HIS105 HIS141 MET101 TYR97 ARG116 ARG46 CYS72 GLY73 GLY75 GLY77 HIS14 ILE15 ILE76 MET78 SER74 TYR49

Protein summary

302 residues
Protein targetT12Atoms4598
Residues302Chains2
Residue summaryARG:576; ILE:456; VAL:448; GLU:360; ALA:340; LEU:304; TYR:252; HIS:204; PRO:196; THR:196; GLY:182; LYS:176; ASP:168; PHE:160; MET:153; SER:121

Receptor context

1 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 1 Excluded HETATM 0
Kept cofactors / ions
A:CSD72

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name6FXSContacts16
PoseOpen native poseHB0
IFP residues
ARG140 ARG144 ASN106 HIS105 HIS141 ARG46 ASP13 CYS72 GLY73 GLY75 GLY77 HIS14 ILE15 ILE76 SER74 TYR49
Current overlap15Native recall0.94
Jaccard0.71RMSD-
HB strict4Strict recall0.33
HB same residue+role4HB role recall0.40
HB same residue5HB residue recall0.50

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

No clash · clashes detected for this pose.

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 5 0.31 0.30 - 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 0 0.00 0.00 - no Open
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 15 0.94 0.40 - no Current
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 -24.701kcal/mol
Ligand efficiency (LE) -0.8234kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.942
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) 24.75kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 74.65kcal/mol
Minimised FF energy 49.89kcal/mol

SASA & burial

✓ computed
SASA (unbound) 683.1Ų
Total solvent-accessible surface area of free ligand
BSA total 535.2Ų
Buried surface area upon binding
BSA apolar 419.5Ų
Hydrophobic contacts buried
BSA polar 115.7Ų
Polar contacts buried
Fraction buried 78.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2225.1Ų
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 2454.8Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 774.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)