FAIRMol

Z68347496

Pose ID 5293 Compound 1425 Pose 552

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 Z68347496
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
27.6 kcal/mol
Protein clashes
8
Internal clashes
9
Native overlap
contact recall 0.79, Jaccard 0.65, H-bond role recall 0.80
Burial
98%
Hydrophobic fit
77%
Reason: 9 internal clashes
8 protein-contact clashes 9 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.372 kcal/mol/HA) ✓ Good fit quality (FQ -13.23) ✓ Strong H-bond network (11 bonds) ✓ Deep burial (98% SASA buried) ✓ Lipophilic contacts well-matched (77%) ✗ High strain energy (27.6 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (12)
Score
-41.160
kcal/mol
LE
-1.372
kcal/mol/HA
Fit Quality
-13.23
FQ (Leeson)
HAC
30
heavy atoms
MW
425
Da
LogP
3.15
cLogP
Strain ΔE
27.6 kcal/mol
SASA buried
98%
Lipo contact
77% BSA apolar/total
SASA unbound
653 Ų
Apolar buried
493 Ų

Interaction summary

HB 11 HY 24 PI 3 CLASH 9
Final rank2.842Score-41.160
Inter norm-1.326Intra norm-0.046
Top1000noExcludedno
Contacts19H-bonds11
Artifact reasongeometry warning; 12 clashes; 1 protein clash; 1 severe cofactor-context clash; moderate strain Δ 27.6
Residues
ARG14 ASN175 ASP161 CYS168 LEU208 LEU209 LYS178 MET163 MET213 NAP301 PHE171 PHE97 PRO167 PRO210 SER207 TRP221 TYR174 VAL164 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
Jaccard0.65RMSD-
HB strict3Strict recall0.50
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
551 0.7863990384040856 -1.0689 -34.3256 10 13 0 0.00 0.00 - no Open
540 2.01639219542086 -0.846568 -22.4366 9 19 0 0.00 0.00 - no Open
597 2.6257543792701297 -0.791858 -27.3268 6 16 0 0.00 0.00 - no Open
552 2.841916052752017 -1.32572 -41.1595 11 19 15 0.79 0.80 - no Current
543 2.925843509730519 -1.38782 -43.7879 9 19 15 0.79 0.80 - no Open
577 3.073966426611157 -0.901 -28.5624 12 17 0 0.00 0.00 - no Open
554 3.391884301661245 -0.86851 -30.1896 8 19 0 0.00 0.00 - no Open
566 3.7897586704157433 -0.890481 -21.4571 10 12 0 0.00 0.00 - no Open
571 4.379321273351954 -0.866284 -27.1145 5 17 0 0.00 0.00 - no Open
577 4.446355622158319 -0.795751 -23.7085 6 19 0 0.00 0.00 - no Open
556 4.761776816752896 -0.850102 -27.284 9 14 0 0.00 0.00 - no Open
566 4.827703850716491 -1.36608 -35.1918 12 19 0 0.00 0.00 - no Open
581 5.166757877468878 -0.708586 -24.5919 8 14 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 -41.160kcal/mol
Ligand efficiency (LE) -1.3720kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -13.235
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 425.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.15
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 27.61kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 61.88kcal/mol
Minimised FF energy 34.27kcal/mol

SASA & burial

✓ computed
SASA (unbound) 652.8Ų
Total solvent-accessible surface area of free ligand
BSA total 638.0Ų
Buried surface area upon binding
BSA apolar 493.0Ų
Hydrophobic contacts buried
BSA polar 145.1Ų
Polar contacts buried
Fraction buried 97.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 77.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1643.4Ų
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 914.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)