FAIRMol

TC408

Pose ID 11773 Compound 1704 Pose 252

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T18
T. brucei TR (Mepacrine binding site (MBS, site 1)) T. brucei Mepacrine binding site (MBS, site 1)
Ligand TC408
PDB6RB5

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
24.8 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.69, Jaccard 0.50
Burial
75%
Hydrophobic fit
82%
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 (-0.819 kcal/mol/HA) ✓ Good fit quality (FQ -7.64) ✓ Deep burial (75% SASA buried) ✓ Lipophilic contacts well-matched (82%) ✗ High strain energy (24.8 kcal/mol) ✗ No H-bonds detected ✗ Geometry warnings ✗ Minor protein-contact clashes (3) ✗ Many internal clashes (11)
Score
-22.124
kcal/mol
LE
-0.819
kcal/mol/HA
Fit Quality
-7.64
FQ (Leeson)
HAC
27
heavy atoms
MW
361
Da
LogP
2.25
cLogP
Final rank
0.9771
rank score
Inter norm
-0.807
normalised
Contacts
14
H-bonds 2
Strain ΔE
24.8 kcal/mol
SASA buried
75%
Lipo contact
82% BSA apolar/total
SASA unbound
640 Ų
Apolar buried
394 Ų

Interaction summary

HB 0 HY 6 PI 4 CLASH 2

HBD/HBA · H-bonds (geometric)

No hbd/hba · h-bonds (geometric) detected for this pose.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name6RB5Contacts13
PoseOpen native poseHB0
IFP residues
ASP116 GLU18 GLY112 ILE106 LEU17 MET113 SER109 THR117 THR335 TRP21 TYR110 VAL53 VAL58
Current overlap9Native recall0.69
Jaccard0.50RMSD-
HB strict0Strict recall-
HB same residue+role0HB role recall-
HB same residue0HB residue recall-

Protein summary

493 residues
Protein targetT18Atoms7550
Residues493Chains1
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:276; MET:221

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:FAD501

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
243 0.6383642184233481 -1.0895 -32.0384 4 13 0 0.00 - - no Open
201 0.8514219575329248 -1.05836 -31.6861 7 17 0 0.00 - - no Open
226 0.9119370131705961 -1.00589 -29.0088 9 16 0 0.00 - - no Open
252 0.9771214741373022 -0.806834 -22.1243 2 14 9 0.69 - - no Current
230 1.2472816895024497 -0.89324 -26.0279 2 18 0 0.00 - - no Open
212 1.2689902355634186 -1.20655 -34.7324 8 25 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 -22.124kcal/mol
Ligand efficiency (LE) -0.8194kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.645
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 361.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.25
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 24.77kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 83.03kcal/mol
Minimised FF energy 58.26kcal/mol

SASA & burial

✓ computed
SASA (unbound) 640.4Ų
Total solvent-accessible surface area of free ligand
BSA total 483.0Ų
Buried surface area upon binding
BSA apolar 393.5Ų
Hydrophobic contacts buried
BSA polar 89.5Ų
Polar contacts buried
Fraction buried 75.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 81.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3153.4Ų
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 4076.6Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1461.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)