FAIRMol

Z275024592

Pose ID 4406 Compound 2284 Pose 343

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 Z275024592
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
25.4 kcal/mol
Protein clashes
0
Internal clashes
8
Native overlap
contact recall 0.63, Jaccard 0.57, H-bond role recall 0.20
Burial
86%
Hydrophobic fit
68%
Reason: 8 internal clashes
8 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.952 kcal/mol/HA) ✓ Good fit quality (FQ -9.18) ✓ Good H-bonds (5 bonds) ✓ Deep burial (86% SASA buried) ✓ Lipophilic contacts well-matched (68%) ✗ High strain energy (25.4 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (8)
Score
-28.555
kcal/mol
LE
-0.952
kcal/mol/HA
Fit Quality
-9.18
FQ (Leeson)
HAC
30
heavy atoms
MW
451
Da
LogP
4.71
cLogP
Strain ΔE
25.4 kcal/mol
SASA buried
86%
Lipo contact
68% BSA apolar/total
SASA unbound
675 Ų
Apolar buried
398 Ų

Interaction summary

HB 5 HY 24 PI 5 CLASH 0
Final rank-0.017Score-28.555
Inter norm-1.009Intra norm0.057
Top1000noExcludedno
Contacts14H-bonds5
Artifact reasongeometry warning; 8 clashes; moderate strain Δ 25.4
Residues
ARG14 ASP161 CYS168 LEU208 LEU209 MET169 MET213 NAP301 PHE171 PHE97 PRO210 TRP221 TYR174 HIS267

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 overlap12Native recall0.63
Jaccard0.57RMSD-
HB strict1Strict recall0.17
HB same residue+role1HB role recall0.20
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

No clash · clashes detected for this pose.

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
343 -0.016781169744085098 -1.00863 -28.5549 5 14 12 0.63 0.20 - no Current
361 0.39586097939460907 -0.943264 -20.6961 1 18 0 0.00 0.00 - no Open
464 1.4734933962778927 -0.826777 -25.3273 3 18 0 0.00 0.00 - no Open
326 1.5781974143203685 -1.09282 -32.0683 3 22 0 0.00 0.00 - no Open
389 1.943848181712128 -0.926403 -25.5192 7 17 0 0.00 0.00 - no Open
361 2.8436288692052334 -0.924051 -28.9454 10 16 0 0.00 0.00 - no Open
364 3.019765575265047 -0.826602 -24.7265 5 12 0 0.00 0.00 - no Open
356 3.4461648256018282 -0.916897 -26.8047 7 18 0 0.00 0.00 - no Open
386 3.5274002705054572 -0.814362 -24.8371 7 11 0 0.00 0.00 - no Open
363 3.5536977263405602 -1.05422 -31.1436 10 19 0 0.00 0.00 - no Open
402 3.832040767874197 -0.721821 -22.5586 9 12 0 0.00 0.00 - no Open
330 3.8955722111935605 -0.975688 -30.3598 6 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 -28.555kcal/mol
Ligand efficiency (LE) -0.9518kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.182
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 450.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.71
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 25.38kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 32.46kcal/mol
Minimised FF energy 7.07kcal/mol

SASA & burial

✓ computed
SASA (unbound) 674.5Ų
Total solvent-accessible surface area of free ligand
BSA total 581.0Ų
Buried surface area upon binding
BSA apolar 398.2Ų
Hydrophobic contacts buried
BSA polar 182.8Ų
Polar contacts buried
Fraction buried 86.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 68.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1577.8Ų
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 926.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)