FAIRMol

Z56174643

Pose ID 9281 Compound 4193 Pose 473

DB SELECTIONDocking pose analysis is being read from this database.
Compound detail Protein structures Back to compounds
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T14
T. brucei ODC (G418 binding site) T. brucei G418 binding site
Ligand Z56174643
PDB1NJJ↗

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 mixed SASA done
Strain ΔE
16.8 kcal/mol
Protein clashes
6
Internal clashes
6
Native overlap
contact recall 0.40, Jaccard 0.33, H-bond role recall 0.20
Burial
71%
Hydrophobic fit
94%
Reason: 6 internal clashes
6 protein-contact clashes 6 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.788 kcal/mol/HA) ✓ Good fit quality (FQ -7.26) ✓ Good H-bonds (5 bonds) ✓ Deep burial (71% SASA buried) ✓ Lipophilic contacts well-matched (94%) ✗ Moderate strain (16.8 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (14)
Score
-20.478
kcal/mol
LE
-0.788
kcal/mol/HA
Fit Quality
-7.26
FQ (Leeson)
HAC
26
heavy atoms
MW
346
Da
LogP
4.10
cLogP
Final rank
3.2745
rank score
Inter norm
-0.843
normalised
Contacts
9
H-bonds 5
Strain ΔE
16.8 kcal/mol
SASA buried
71%
Lipo contact
94% BSA apolar/total
SASA unbound
590 Ų
Apolar buried
390 Ų

Interaction summary

HBD 3 HBA 2 HY 4 PI 1 CLASH 6

HBD/HBA · H-bonds (geometric)
HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 2.

PI · π–π interactions
Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name1NJJContacts15
PoseOpen native poseHB0
IFP residues
ARG22 ARG242 ARG337 ARG342 ASP243 ASP385 GLN341 GLU384 LEU25 LEU339 LEU382 PRO340 PRO344 SER282 THR241
Current overlap6Native recall0.40
Jaccard0.33RMSD-
HB strict1Strict recall0.17
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.20

Protein summary

398 residues
Protein targetT14Atoms6140
Residues398Chains1
Residue summaryVAL:592; LEU:513; LYS:484; ARG:432; PHE:420; ILE:418; ASP:349; THR:322; TYR:315; PRO:308; GLU:301; ALA:290; SER:253; GLY:217; ASN:210; GLN:170

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:ORX602

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
473 3.2744794980911 -0.842593 -20.4783 5 9 6 0.40 0.20 - 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 -20.478kcal/mol
Ligand efficiency (LE) -0.7876kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.257
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 26HA

Physicochemical properties
Molecular weight 346.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.10
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)
Strain energy (ΔE) 16.84kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 54.67kcal/mol
Minimised FF energy 37.83kcal/mol

SASA & burial

✓ computed
SASA (unbound) 590.1Ų
Total solvent-accessible surface area of free ligand
BSA total 416.6Ų
Buried surface area upon binding
BSA apolar 389.8Ų
Hydrophobic contacts buried
BSA polar 26.8Ų
Polar contacts buried
Fraction buried 70.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 93.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2488.5Ų
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 3349.0Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1420.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)