FAIRMol

Z46148418

Pose ID 4461 Compound 2922 Pose 398

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 Z46148418
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
25.8 kcal/mol
Protein clashes
6
Internal clashes
8
Native overlap
contact recall 0.74, Jaccard 0.58, H-bond role recall 0.40
Burial
98%
Hydrophobic fit
80%
Reason: 8 internal clashes
6 protein-contact clashes 8 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.883 kcal/mol/HA) ✓ Good fit quality (FQ -8.24) ✓ Good H-bonds (5 bonds) ✓ Deep burial (98% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ High strain energy (25.8 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-23.849
kcal/mol
LE
-0.883
kcal/mol/HA
Fit Quality
-8.24
FQ (Leeson)
HAC
27
heavy atoms
MW
376
Da
LogP
4.76
cLogP
Strain ΔE
25.8 kcal/mol
SASA buried
98%
Lipo contact
80% BSA apolar/total
SASA unbound
627 Ų
Apolar buried
497 Ų

Interaction summary

HB 5 HY 24 PI 4 CLASH 8
Final rank2.785Score-23.849
Inter norm-1.131Intra norm0.248
Top1000noExcludedno
Contacts19H-bonds5
Artifact reasongeometry warning; 10 clashes; 1 protein clash; 2 cofactor-context clashes; moderate strain Δ 25.8
Residues
ARG14 ASN175 ASP161 CYS168 GLY205 LEU208 LEU209 LEU263 MET163 NAP301 PHE171 PHE97 PRO167 PRO210 SER95 TRP221 TYR174 VAL164 VAL206

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 overlap14Native recall0.74
Jaccard0.58RMSD-
HB strict1Strict recall0.17
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
387 0.986590480413215 -1.18899 -31.67 7 20 0 0.00 0.00 - no Open
398 2.78537161225645 -1.1314 -23.8488 5 19 14 0.74 0.40 - no Current

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -23.849kcal/mol
Ligand efficiency (LE) -0.8833kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.241
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 376.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.76
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 25.83kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 84.55kcal/mol
Minimised FF energy 58.72kcal/mol

SASA & burial

✓ computed
SASA (unbound) 626.6Ų
Total solvent-accessible surface area of free ligand
BSA total 617.1Ų
Buried surface area upon binding
BSA apolar 497.1Ų
Hydrophobic contacts buried
BSA polar 120.1Ų
Polar contacts buried
Fraction buried 98.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 80.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1632.6Ų
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 917.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)