FAIRMol

TC342

Pose ID 4290 Compound 656 Pose 227

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 TC342
PDB6RX6

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
46.9 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.68, Jaccard 0.59, H-bond role recall 0.40
Burial
72%
Hydrophobic fit
78%
Reason: strain 46.9 kcal/mol
strain ΔE 46.9 kcal/mol 2 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.540 kcal/mol/HA) ✓ Good fit quality (FQ -5.60) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (72% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ Extreme strain energy (46.9 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (3) ✗ Many internal clashes (18)
Score
-21.059
kcal/mol
LE
-0.540
kcal/mol/HA
Fit Quality
-5.60
FQ (Leeson)
HAC
39
heavy atoms
MW
532
Da
LogP
3.79
cLogP
Strain ΔE
46.9 kcal/mol
SASA buried
72%
Lipo contact
78% BSA apolar/total
SASA unbound
828 Ų
Apolar buried
466 Ų

Interaction summary

HB 8 HY 24 PI 4 CLASH 2
Final rank1.593Score-21.059
Inter norm-0.854Intra norm0.314
Top1000noExcludedno
Contacts16H-bonds8
Artifact reasongeometry warning; 18 clashes; 3 protein contact clashes; 1 severe cofactor-context clash; high strain Δ 46.9
Residues
ALA212 ARG14 CYS168 GLU217 LEU208 MET213 NAP301 PHE171 PHE97 PRO210 PRO99 SER95 TRP221 TYR174 TYR98 VAL211

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+role2HB role recall0.40
HB same residue2HB residue recall0.40

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
227 1.5930935864572577 -0.853891 -21.0594 8 16 13 0.68 0.40 - no Current
297 5.6376494985889005 -0.756631 -15.9309 5 18 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 -21.059kcal/mol
Ligand efficiency (LE) -0.5400kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.604
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 39HA

Physicochemical properties

Molecular weight 531.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.79
Lipinski: ≤ 5
Rotatable bonds 11

Conformational strain (MMFF94s)

Strain energy (ΔE) 46.94kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 137.29kcal/mol
Minimised FF energy 90.35kcal/mol

SASA & burial

✓ computed
SASA (unbound) 828.2Ų
Total solvent-accessible surface area of free ligand
BSA total 596.8Ų
Buried surface area upon binding
BSA apolar 465.5Ų
Hydrophobic contacts buried
BSA polar 131.3Ų
Polar contacts buried
Fraction buried 72.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1803.3Ų
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 929.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)