FAIRMol

TC271

Pose ID 11090 Compound 1818 Pose 247

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 TC271
PDB5S9T

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Promising SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
12.4 kcal/mol
Protein clashes
0
Internal clashes
7
Native overlap
contact recall 0.67, Jaccard 0.38, H-bond role recall 1.00
Burial
85%
Hydrophobic fit
72%
Reason: 7 internal clashes
7 intramolecular clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-0.866 kcal/mol/HA) ✓ Good fit quality (FQ -7.52) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (85% SASA buried) ✓ Lipophilic contacts well-matched (72%) ✗ Moderate strain (12.4 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (7)
Score
-19.058
kcal/mol
LE
-0.866
kcal/mol/HA
Fit Quality
-7.52
FQ (Leeson)
HAC
22
heavy atoms
MW
297
Da
LogP
2.30
cLogP
Strain ΔE
12.4 kcal/mol
SASA buried
85%
Lipo contact
72% BSA apolar/total
SASA unbound
540 Ų
Apolar buried
331 Ų

Interaction summary

HB 9 HY 22 PI 2 CLASH 0

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.
Final rank1.518Score-19.058
Inter norm-1.089Intra norm0.223
Top1000noExcludedno
Contacts17H-bonds9
Artifact reasongeometry warning; 7 clashes; 1 protein clash
Residues
ALA284 ALA365 ARG287 GLY195 GLY196 GLY197 GLY286 ILE199 ILE285 LEU332 LEU334 MET333 PHE198 PHE230 SER200 SER364 VAL366

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 overlap8Native recall0.67
Jaccard0.38RMSD-
HB strict1Strict recall1.00
HB same residue+role1HB role recall1.00
HB same residue1HB residue recall1.00

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
220 0.3651391185133525 -1.45139 -23.7405 8 14 0 0.00 0.00 - no Open
192 0.4571207130802301 -1.18119 -19.2496 10 16 0 0.00 0.00 - no Open
237 1.5063260990891212 -1.13516 -23.1709 4 15 0 0.00 0.00 - no Open
247 1.5181578036895516 -1.089 -19.0581 9 17 8 0.67 1.00 - no Current
243 1.7178078774494703 -1.28667 -20.7882 8 13 0 0.00 0.00 - no Open
232 1.8651070569406785 -1.47707 -29.7815 7 16 0 0.00 0.00 - no Open
198 2.1445626433417684 -1.42852 -28.7517 8 19 0 0.00 0.00 - no Open
213 2.3624501248232654 -1.20095 -22.4306 10 15 0 0.00 0.00 - no Open
155 2.5177967963534 -1.60533 -28.0634 11 18 0 0.00 0.00 - no Open
242 2.61548570124989 -0.940053 -20.2644 4 9 0 0.00 0.00 - no Open
165 2.843997714984992 -1.28647 -22.6883 12 13 0 0.00 0.00 - no Open
153 3.038012358487256 -1.13257 -24.4214 10 15 0 0.00 0.00 - no Open
223 4.2149665993990615 -1.33738 -26.7053 8 11 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 -19.058kcal/mol
Ligand efficiency (LE) -0.8663kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.521
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 22HA

Physicochemical properties

Molecular weight 297.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.30
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 12.43kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 47.22kcal/mol
Minimised FF energy 34.79kcal/mol

SASA & burial

✓ computed
SASA (unbound) 539.7Ų
Total solvent-accessible surface area of free ligand
BSA total 460.9Ų
Buried surface area upon binding
BSA apolar 331.2Ų
Hydrophobic contacts buried
BSA polar 129.8Ų
Polar contacts buried
Fraction buried 85.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 71.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6389.1Ų
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 8063.1Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 2072.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)