FAIRMol

Z55668625

Pose ID 8720 Compound 4059 Pose 590

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T13
T. brucei ODC (Active site) T. brucei Active site
Ligand Z55668625
PDB1F3T

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
62.8 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.79, Jaccard 0.62, H-bond role recall 0.29
Burial
81%
Hydrophobic fit
73%
Reason: strain 62.8 kcal/mol
strain ΔE 62.8 kcal/mol 2 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.708 kcal/mol/HA) ✓ Good fit quality (FQ -7.03) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (81% SASA buried) ✓ Lipophilic contacts well-matched (73%) ✗ Extreme strain energy (62.8 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (17)
Score
-23.366
kcal/mol
LE
-0.708
kcal/mol/HA
Fit Quality
-7.03
FQ (Leeson)
HAC
33
heavy atoms
MW
489
Da
LogP
4.46
cLogP
Strain ΔE
62.8 kcal/mol
SASA buried
81%
Lipo contact
73% BSA apolar/total
SASA unbound
758 Ų
Apolar buried
450 Ų

Interaction summary

HB 9 HY 13 PI 3 CLASH 2

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

Final rank4.722Score-23.366
Inter norm-0.855Intra norm0.146
Top1000noExcludedno
Contacts20H-bonds9
Artifact reasongeometry warning; 17 clashes; 2 protein clashes; high strain Δ 62.8
Residues
ALA111 ALA67 ALA90 ARG154 ARG277 ASN112 ASP332 ASP88 GLU274 GLY199 GLY236 GLY237 GLY276 HIS197 LYS69 PHE170 PRO113 SER200 TYR331 TYR389

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name1F3TContacts19
PoseOpen native poseHB0
IFP residues
ALA111 ALA67 ARG154 ARG277 ASP332 ASP88 CYS70 GLU274 GLY236 GLY237 GLY276 HIS197 LYS69 PHE238 PRO275 SER200 TYR278 TYR331 TYR389
Current overlap15Native recall0.79
Jaccard0.62RMSD-
HB strict3Strict recall0.33
HB same residue+role2HB role recall0.29
HB same residue3HB residue recall0.43

Protein summary

411 residues
Protein targetT13Atoms6340
Residues411Chains1
Residue summaryVAL:624; LEU:551; LYS:506; ARG:480; PHE:460; ILE:418; ASP:348; GLU:332; THR:322; TYR:315; PRO:308; ALA:290; SER:264; GLY:224; ASN:210; GLN:170

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
577 1.5790230036333115 -0.959463 -27.8254 5 24 0 0.00 0.00 - no Open
586 3.105226486580899 -0.581932 -15.8538 4 9 0 0.00 0.00 - no Open
590 4.72161139180752 -0.854819 -23.3658 9 20 15 0.79 0.29 - no Current
598 4.995951227667286 -0.966543 -31.2537 11 20 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 -23.366kcal/mol
Ligand efficiency (LE) -0.7081kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.025
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 33HA

Physicochemical properties

Molecular weight 488.9Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.46
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 62.84kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 88.49kcal/mol
Minimised FF energy 25.65kcal/mol

SASA & burial

✓ computed
SASA (unbound) 758.4Ų
Total solvent-accessible surface area of free ligand
BSA total 614.2Ų
Buried surface area upon binding
BSA apolar 449.5Ų
Hydrophobic contacts buried
BSA polar 164.6Ų
Polar contacts buried
Fraction buried 81.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 73.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2607.0Ų
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 3461.2Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1418.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)