FAIRMol

Z147200608

Pose ID 4560 Compound 1544 Pose 497

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 Z147200608
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
35.2 kcal/mol
Protein clashes
9
Internal clashes
9
Native overlap
contact recall 0.37, Jaccard 0.29, H-bond role recall 0.80
Burial
96%
Hydrophobic fit
71%
Reason: 9 protein-contact clashes, 9 internal clashes
9 protein-contact clashes 9 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-1.076 kcal/mol/HA) ✓ Good fit quality (FQ -9.18) ✓ Strong H-bond network (12 bonds) ✓ Deep burial (96% SASA buried) ✓ Lipophilic contacts well-matched (71%) ✗ Very high strain energy (35.2 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (11) ✗ Internal clashes (8)
Score
-22.591
kcal/mol
LE
-1.076
kcal/mol/HA
Fit Quality
-9.18
FQ (Leeson)
HAC
21
heavy atoms
MW
301
Da
LogP
1.30
cLogP
Strain ΔE
35.2 kcal/mol
SASA buried
96%
Lipo contact
71% BSA apolar/total
SASA unbound
527 Ų
Apolar buried
362 Ų

Interaction summary

HB 12 HY 24 PI 4 CLASH 9
Final rank1.232Score-22.591
Inter norm-1.434Intra norm0.358
Top1000noExcludedno
Contacts12H-bonds12
Artifact reasongeometry warning; 8 clashes; 11 protein contact clashes; 1 cofactor-context clash; high strain Δ 35.2
Residues
ASN175 ASP161 CYS168 GLN166 MET163 NAP301 PHE171 PHE97 PRO167 SER95 TYR174 VAL164

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 overlap7Native recall0.37
Jaccard0.29RMSD-
HB strict5Strict recall0.83
HB same residue+role4HB role recall0.80
HB same residue4HB residue recall0.80

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
525 -0.2542710995135058 -1.21566 -23.1584 7 12 0 0.00 0.00 - no Open
532 0.5971717101617344 -1.14756 -19.4002 7 13 0 0.00 0.00 - no Open
497 1.2324117898771396 -1.43373 -22.5907 12 12 7 0.37 0.80 - no Current
515 1.4790178136390348 -1.51283 -28.374 8 15 10 0.53 0.60 - no Open
515 3.4416681627078414 -1.32144 -34.3345 12 16 0 0.00 0.00 - no Open
518 3.8294717471537094 -1.22635 -29.9924 11 16 0 0.00 0.00 - no Open
501 3.849075903106818 -1.34917 -33.7785 6 16 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 -22.591kcal/mol
Ligand efficiency (LE) -1.0757kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.176
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 21HA

Physicochemical properties

Molecular weight 301.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.30
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 35.24kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -6.15kcal/mol
Minimised FF energy -41.39kcal/mol

SASA & burial

✓ computed
SASA (unbound) 526.9Ų
Total solvent-accessible surface area of free ligand
BSA total 506.9Ų
Buried surface area upon binding
BSA apolar 361.7Ų
Hydrophobic contacts buried
BSA polar 145.1Ų
Polar contacts buried
Fraction buried 96.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 71.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1488.1Ų
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 928.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)