FAIRMol

Z25403655

Pose ID 9370 Compound 2987 Pose 562

DB SELECTIONDocking pose analysis is being read from this database.
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 Z25403655
PDB1NJJ

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Likely artefact or unreliable pose
Binding strong Geometry medium Native mixed SASA done
Strain ΔE
30.3 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.33, Jaccard 0.25, H-bond role recall 0.40
Burial
63%
Hydrophobic fit
65%
Reason: no major geometry red flags detected
3 protein-contact clashes 3 intramolecular clashes 50% of hydrophobic surface appears solvent-exposed (9/18 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.736 kcal/mol/HA) ✓ Good fit quality (FQ -7.03) ✓ Strong H-bond network (9 bonds) ✓ Good burial (63% SASA buried) ✓ Lipophilic contacts well-matched (65%) ✗ Very high strain energy (30.3 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (8) ✗ Internal clashes (7)
Score
-21.354
kcal/mol
LE
-0.736
kcal/mol/HA
Fit Quality
-7.03
FQ (Leeson)
HAC
29
heavy atoms
MW
433
Da
LogP
2.66
cLogP
Strain ΔE
30.3 kcal/mol
SASA buried
63%
Lipo contact
65% BSA apolar/total
SASA unbound
680 Ų
Apolar buried
278 Ų

Interaction summary

HB 9 HY 9 PI 0 CLASH 3 ⚠ Exposure 50%
⚠️Partial hydrophobic solvent exposure
50% of hydrophobic surface appears solvent-exposed (9/18 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 18 Buried (contacted) 9 Exposed 9 LogP 2.66 H-bonds 9
Exposed fragments: phenyl (3/5 atoms exposed)phenyl (6/6 atoms exposed)aliphatic chain/group (1 atom exposed)
Final rank1.428Score-21.354
Inter norm-0.753Intra norm0.017
Top1000noExcludedno
Contacts10H-bonds9
Artifact reasongeometry warning; 7 clashes; 8 protein contact clashes; high strain Δ 30.3
Residues
ALA334 ARG337 ASP243 ASP385 GLU384 LEU339 MET386 PHE383 VAL335 VAL336

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

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 overlap5Native recall0.33
Jaccard0.25RMSD-
HB strict0Strict recall0.00
HB same residue+role2HB role recall0.40
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

No pi · π–π interactions detected for this pose.

HY · Hydrophobic contacts

CLASH · Clashes

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
560 0.4219802112234943 -1.115 -30.3827 5 14 0 0.00 0.00 - no Open
562 1.4283150224008307 -0.752873 -21.3542 9 10 5 0.33 0.40 - no Current
587 1.5034175836679107 -0.759669 -18.4209 8 12 0 0.00 0.00 - no Open
564 2.3157924979606697 -0.873015 -23.9565 4 14 0 0.00 0.00 - no Open
573 2.917700286713863 -0.733702 -21.1866 8 12 0 0.00 0.00 - no Open
578 2.9238356039284867 -0.81816 -24.7433 7 17 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 -21.354kcal/mol
Ligand efficiency (LE) -0.7364kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.029
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 432.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.66
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 30.34kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 48.23kcal/mol
Minimised FF energy 17.90kcal/mol

SASA & burial

✓ computed
SASA (unbound) 680.1Ų
Total solvent-accessible surface area of free ligand
BSA total 428.6Ų
Buried surface area upon binding
BSA apolar 277.9Ų
Hydrophobic contacts buried
BSA polar 150.7Ų
Polar contacts buried
Fraction buried 63.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 64.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2446.3Ų
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 1377.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)