FAIRMol

Z49732247

Pose ID 5372 Compound 293 Pose 631

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T08
T. brucei PTR1 T. brucei
Ligand Z49732247
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
Weak or marginal quality
Binding strong Geometry medium Native strong SASA done
Strain ΔE
30.4 kcal/mol
Protein clashes
2
Internal clashes
3
Native overlap
contact recall 0.79, Jaccard 0.79, H-bond role recall 0.60
Burial
91%
Hydrophobic fit
72%
Reason: no major geometry red flags detected
2 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.415 kcal/mol/HA) ✓ Good fit quality (FQ -12.48) ✓ Strong H-bond network (11 bonds) ✓ Deep burial (91% SASA buried) ✓ Lipophilic contacts well-matched (72%) ✗ Very high strain energy (30.4 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (13)
Score
-32.533
kcal/mol
LE
-1.415
kcal/mol/HA
Fit Quality
-12.48
FQ (Leeson)
HAC
23
heavy atoms
MW
311
Da
LogP
1.70
cLogP
Strain ΔE
30.4 kcal/mol
SASA buried
91%
Lipo contact
72% BSA apolar/total
SASA unbound
514 Ų
Apolar buried
339 Ų

Interaction summary

HB 11 HY 24 PI 4 CLASH 3
Final rank1.744Score-32.533
Inter norm-1.462Intra norm0.047
Top1000noExcludedno
Contacts15H-bonds11
Artifact reasongeometry warning; 13 clashes; 1 protein clash; 1 severe cofactor-context clash; high strain Δ 30.4
Residues
ARG14 ASP161 CYS168 LEU208 LEU209 MET213 NAP301 PHE171 PHE97 PRO210 SER207 SER95 TRP221 TYR174 VAL206

Protein summary

258 residues
Protein targetT08Atoms3881
Residues258Chains2
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 overlap15Native recall0.79
Jaccard0.79RMSD-
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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
647 1.5369423264640099 -1.51564 -34.221 9 16 16 0.84 0.60 - no Open
631 1.7438540370937325 -1.46157 -32.5334 11 15 15 0.79 0.60 - no Current
628 1.8888772517239385 -1.12492 -25.3959 5 15 0 0.00 0.00 - no Open
639 2.0651593307692404 -1.20531 -24.0791 7 8 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 -32.533kcal/mol
Ligand efficiency (LE) -1.4145kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -12.484
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 23HA

Physicochemical properties

Molecular weight 311.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.70
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 30.38kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 110.40kcal/mol
Minimised FF energy 80.02kcal/mol

SASA & burial

✓ computed
SASA (unbound) 514.3Ų
Total solvent-accessible surface area of free ligand
BSA total 469.1Ų
Buried surface area upon binding
BSA apolar 338.8Ų
Hydrophobic contacts buried
BSA polar 130.3Ų
Polar contacts buried
Fraction buried 91.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 72.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1512.6Ų
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 914.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)