FAIRMol

TC489

Pose ID 4305 Compound 832 Pose 242

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T07
T. brucei PTR1 T. brucei
Ligand TC489
PDB6RX6

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
38.9 kcal/mol
Protein clashes
2
Internal clashes
16
Native overlap
contact recall 0.68, Jaccard 0.59, H-bond role recall 0.60
Burial
72%
Hydrophobic fit
83%
Reason: 16 internal clashes
2 protein-contact clashes 16 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.862 kcal/mol/HA) ✓ Good fit quality (FQ -8.89) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (72% SASA buried) ✓ Lipophilic contacts well-matched (83%) ✗ Very high strain energy (38.9 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Many internal clashes (16)
Score
-32.761
kcal/mol
LE
-0.862
kcal/mol/HA
Fit Quality
-8.89
FQ (Leeson)
HAC
38
heavy atoms
MW
515
Da
LogP
5.18
cLogP
Strain ΔE
38.9 kcal/mol
SASA buried
72%
Lipo contact
83% BSA apolar/total
SASA unbound
850 Ų
Apolar buried
505 Ų

Interaction summary

HB 6 HY 24 PI 4 CLASH 0
Final rank1.206Score-32.761
Inter norm-0.920Intra norm0.058
Top1000noExcludedno
Contacts16H-bonds6
Artifact reasongeometry warning; 16 clashes; 2 protein contact clashes; 1 severe cofactor-context clash; high strain Δ 38.9
Residues
ARG14 ASP161 CYS168 GLU217 LEU208 LYS220 MET213 NAP301 PHE171 PHE97 PRO210 PRO99 TRP221 TYR174 TYR98 HIS267

Protein summary

275 residues
Protein targetT07Atoms3932
Residues275Chains3
Residue summaryLEU:437; VAL:433; ALA:361; ARG:288; ILE:266; GLU:210; LYS:198; SER:198; ASN:182; THR:154; GLN:153; PHE:140; PRO:140; TYR:126; GLY:112; HIS:103

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:NAP301

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
NameTbPTR1_cW_6RX6_ReadyContacts19
PoseOpen native poseHB0
IFP residues
ARG14 ASP161 CYS168 GLY205 LEU208 LEU209 LYS178 MET213 NAP301 PHE171 PHE97 PRO210 PRO99 SER207 SER95 TRP221 TYR174 TYR98 VAL206
Current overlap13Native recall0.68
Jaccard0.59RMSD-
HB strict3Strict recall0.50
HB same residue+role3HB role recall0.60
HB same residue3HB residue recall0.60

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
242 1.2061003088206848 -0.920315 -32.7614 6 16 13 0.68 0.60 - no Current
250 1.6503078268434284 -0.702237 -24.6212 4 13 0 0.00 0.00 - no Open
292 1.731561596222887 -0.706716 -23.0589 7 21 0 0.00 0.00 - no Open
245 1.977778943085613 -0.84556 -28.2026 7 16 14 0.74 0.60 - no Open
192 3.4848070954252997 -0.714249 -25.0458 8 14 0 0.00 0.00 - no Open
288 4.208588974776811 -0.511351 -19.8728 6 15 0 0.00 0.00 - no Open
211 4.5254155240912235 -0.68483 -25.2718 8 15 0 0.00 0.00 - no Open
216 4.543538828410204 -0.917323 -30.6767 12 24 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 -32.761kcal/mol
Ligand efficiency (LE) -0.8621kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.888
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 38HA

Physicochemical properties

Molecular weight 514.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.18
Lipinski: ≤ 5
Rotatable bonds 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 38.94kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 143.59kcal/mol
Minimised FF energy 104.65kcal/mol

SASA & burial

✓ computed
SASA (unbound) 849.7Ų
Total solvent-accessible surface area of free ligand
BSA total 611.0Ų
Buried surface area upon binding
BSA apolar 504.5Ų
Hydrophobic contacts buried
BSA polar 106.5Ų
Polar contacts buried
Fraction buried 71.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 82.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1844.3Ų
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 2051.9Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 947.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)