FAIRMol

Z19126905

Pose ID 9469 Compound 4207 Pose 661

DB fairmolDocking 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 Z19126905
PDB1NJJ

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Promising SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native mixed SASA done
Strain ΔE
12.3 kcal/mol
Protein clashes
0
Internal clashes
9
Native overlap
contact recall 0.40, Jaccard 0.32, H-bond role recall 0.20
Burial
78%
Hydrophobic fit
76%
Reason: 9 internal clashes
9 intramolecular clashes 38% of hydrophobic surface appears solvent-exposed (6/16 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.116 kcal/mol/HA) ✓ Good fit quality (FQ -9.52) ✓ Good H-bonds (3 bonds) ✓ Deep burial (78% SASA buried) ✓ Lipophilic contacts well-matched (76%) ✗ Moderate strain (12.3 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)
Score
-23.435
kcal/mol
LE
-1.116
kcal/mol/HA
Fit Quality
-9.52
FQ (Leeson)
HAC
21
heavy atoms
MW
292
Da
LogP
3.80
cLogP
Strain ΔE
12.3 kcal/mol
SASA buried
78%
Lipo contact
76% BSA apolar/total
SASA unbound
495 Ų
Apolar buried
297 Ų

Interaction summary

HB 3 HY 9 PI 0 CLASH 0 ⚠ Exposure 37%

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

No clash · clashes detected for this pose.
⚠️Partial hydrophobic solvent exposure
38% of hydrophobic surface appears solvent-exposed (6/16 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 16 Buried (contacted) 10 Exposed 6 LogP 3.8 H-bonds 3
Exposed fragments: phenyl (6/6 atoms exposed)
Final rank3.642Score-23.435
Inter norm-1.060Intra norm-0.056
Top1000noExcludedno
Contacts10H-bonds3
Artifact reasongeometry warning; 9 clashes; 3 protein clashes
Residues
ALA334 ARG337 ASP243 ASP385 GLU384 LEU339 PHE383 THR241 VAL335 VAL336

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
Jaccard0.32RMSD-
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
661 3.641574267474206 -1.06004 -23.4354 3 10 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 -23.435kcal/mol
Ligand efficiency (LE) -1.1160kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.519
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 21HA

Physicochemical properties

Molecular weight 292.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.80
Lipinski: ≤ 5
Rotatable bonds 3

Conformational strain (MMFF94s)

Strain energy (ΔE) 12.34kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 58.54kcal/mol
Minimised FF energy 46.20kcal/mol

SASA & burial

✓ computed
SASA (unbound) 494.8Ų
Total solvent-accessible surface area of free ligand
BSA total 388.0Ų
Buried surface area upon binding
BSA apolar 296.7Ų
Hydrophobic contacts buried
BSA polar 91.3Ų
Polar contacts buried
Fraction buried 78.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 76.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2349.3Ų
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 1403.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)