FAIRMol

TC321

Pose ID 11095 Compound 1403 Pose 252

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 TC321
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
37.4 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.58, Jaccard 0.28, H-bond role recall 0.00
Burial
79%
Hydrophobic fit
90%
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 (-0.501 kcal/mol/HA) ✓ Good fit quality (FQ -5.20) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (79% SASA buried) ✓ Lipophilic contacts well-matched (90%) ✗ Very high strain energy (37.4 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (15)
Score
-19.542
kcal/mol
LE
-0.501
kcal/mol/HA
Fit Quality
-5.20
FQ (Leeson)
HAC
39
heavy atoms
MW
530
Da
LogP
4.88
cLogP
Strain ΔE
37.4 kcal/mol
SASA buried
79%
Lipo contact
90% BSA apolar/total
SASA unbound
869 Ų
Apolar buried
622 Ų

Interaction summary

HB 6 HY 23 PI 2 CLASH 2
Final rank4.942Score-19.542
Inter norm-0.597Intra norm0.096
Top1000noExcludedno
Contacts20H-bonds6
Artifact reasongeometry warning; 15 clashes; 3 protein clashes; high strain Δ 37.3
Residues
ALA284 ALA363 ARG287 ARG331 ARG361 ASP330 CYS375 GLY197 GLY286 GLY376 HIS428 ILE199 LEU332 MET333 PHE198 PHE230 SER200 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 overlap7Native recall0.58
Jaccard0.28RMSD-
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
225 1.2840366049662622 -0.814257 -29.4206 7 18 0 0.00 0.00 - no Open
269 3.471720513641678 -0.881205 -25.7326 5 20 0 0.00 0.00 - no Open
246 4.1004327543690335 -0.585103 -21.7902 11 19 0 0.00 0.00 - no Open
252 4.942069088058056 -0.597329 -19.5422 6 20 7 0.58 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 -19.542kcal/mol
Ligand efficiency (LE) -0.5011kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.200
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 39HA

Physicochemical properties

Molecular weight 529.7Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.88
Lipinski: ≤ 5
Rotatable bonds 11

Conformational strain (MMFF94s)

Strain energy (ΔE) 37.44kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 118.78kcal/mol
Minimised FF energy 81.34kcal/mol

SASA & burial

✓ computed
SASA (unbound) 869.3Ų
Total solvent-accessible surface area of free ligand
BSA total 687.2Ų
Buried surface area upon binding
BSA apolar 621.5Ų
Hydrophobic contacts buried
BSA polar 65.7Ų
Polar contacts buried
Fraction buried 79.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 90.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6768.9Ų
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 2072.6Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)