FAIRMol

Z111781472

Pose ID 9418 Compound 3198 Pose 610

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 Z111781472
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
Weak or marginal quality
Binding strong Geometry high Native mixed SASA done
Strain ΔE
15.9 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.40, Jaccard 0.30, H-bond role recall 0.20
Burial
79%
Hydrophobic fit
78%
Reason: no major geometry red flags detected
2 protein-contact clashes 44% of hydrophobic surface appears solvent-exposed (7/16 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.184 kcal/mol/HA) ✓ Good fit quality (FQ -9.91) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (79% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ Moderate strain (15.9 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (5) ✗ Internal clashes (6)
Score
-23.675
kcal/mol
LE
-1.184
kcal/mol/HA
Fit Quality
-9.91
FQ (Leeson)
HAC
20
heavy atoms
MW
266
Da
LogP
2.72
cLogP
Strain ΔE
15.9 kcal/mol
SASA buried
79%
Lipo contact
78% BSA apolar/total
SASA unbound
488 Ų
Apolar buried
299 Ų

Interaction summary

HB 6 HY 5 PI 0 CLASH 2 ⚠ Exposure 43%
⚠️Partial hydrophobic solvent exposure
44% of hydrophobic surface appears solvent-exposed (7/16 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 16 Buried (contacted) 9 Exposed 7 LogP 2.72 H-bonds 6
Exposed fragments: phenyl (6/6 atoms exposed)aliphatic chain/group (1 atom exposed)
Final rank0.428Score-23.675
Inter norm-1.149Intra norm-0.035
Top1000noExcludedno
Contacts11H-bonds6
Artifact reasongeometry warning; 6 clashes; 5 protein contact clashes
Residues
ALA334 ARG337 ASP243 ASP385 GLU384 LEU339 MET386 PHE383 THR241 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 overlap6Native recall0.40
Jaccard0.30RMSD-
HB strict0Strict recall0.00
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.20

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
610 0.42771410537590926 -1.14913 -23.6753 6 11 6 0.40 0.20 - no Current
601 1.1143433330286028 -1.27961 -25.361 6 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 -23.675kcal/mol
Ligand efficiency (LE) -1.1838kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.906
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 20HA

Physicochemical properties

Molecular weight 266.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.72
Lipinski: ≤ 5
Rotatable bonds 3

Conformational strain (MMFF94s)

Strain energy (ΔE) 15.92kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 91.45kcal/mol
Minimised FF energy 75.53kcal/mol

SASA & burial

✓ computed
SASA (unbound) 487.8Ų
Total solvent-accessible surface area of free ligand
BSA total 383.1Ų
Buried surface area upon binding
BSA apolar 298.8Ų
Hydrophobic contacts buried
BSA polar 84.3Ų
Polar contacts buried
Fraction buried 78.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2360.7Ų
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 1390.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)