FAIRMol

Z49565795

Pose ID 5386 Compound 1307 Pose 645

DB fairmolDocking 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 Z49565795
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
39.2 kcal/mol
Protein clashes
0
Internal clashes
11
Native overlap
contact recall 0.63, Jaccard 0.60, H-bond role recall 0.40
Burial
86%
Hydrophobic fit
90%
Reason: 11 internal clashes
11 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.238 kcal/mol/HA) ✓ Good fit quality (FQ -11.55) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (86% SASA buried) ✓ Lipophilic contacts well-matched (90%) ✗ Very high strain energy (39.2 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (11)
Score
-33.429
kcal/mol
LE
-1.238
kcal/mol/HA
Fit Quality
-11.55
FQ (Leeson)
HAC
27
heavy atoms
MW
356
Da
LogP
0.96
cLogP
Strain ΔE
39.2 kcal/mol
SASA buried
86%
Lipo contact
90% BSA apolar/total
SASA unbound
612 Ų
Apolar buried
469 Ų

Interaction summary

HB 7 HY 24 PI 5 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 rank0.312Score-33.429
Inter norm-1.183Intra norm-0.055
Top1000noExcludedno
Contacts13H-bonds7
Artifact reasongeometry warning; 11 clashes; 1 protein contact clash; 1 severe cofactor-context clash; high strain Δ 39.2
Residues
ARG14 ASP161 CYS168 LEU208 LEU209 MET213 NAP301 PHE171 PHE97 PRO210 TRP221 TYR174 VAL211

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 overlap12Native recall0.63
Jaccard0.60RMSD-
HB strict2Strict recall0.33
HB same residue+role2HB role recall0.40
HB same residue2HB residue recall0.40

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
645 0.3117638929898845 -1.18267 -33.4286 7 13 12 0.63 0.40 - no Current
651 2.579398523361409 -1.06732 -30.0659 4 10 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 -33.429kcal/mol
Ligand efficiency (LE) -1.2381kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -11.551
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 356.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 0.96
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 39.21kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 128.05kcal/mol
Minimised FF energy 88.84kcal/mol

SASA & burial

✓ computed
SASA (unbound) 611.7Ų
Total solvent-accessible surface area of free ligand
BSA total 523.0Ų
Buried surface area upon binding
BSA apolar 469.3Ų
Hydrophobic contacts buried
BSA polar 53.7Ų
Polar contacts buried
Fraction buried 85.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 89.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1682.5Ų
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 927.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)