FAIRMol

Z30879796

Pose ID 9450 Compound 798 Pose 642

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 Z30879796
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 strong SASA done
Strain ΔE
12.1 kcal/mol
Protein clashes
8
Internal clashes
8
Native overlap
contact recall 0.60, Jaccard 0.41, H-bond role recall 0.20
Burial
74%
Hydrophobic fit
94%
Reason: 8 internal clashes
8 protein-contact clashes 8 intramolecular clashes 77% of hydrophobic surface is solvent-exposed (20/26 atoms). Large non-polar area without protein contacts incurs a desolvation penalty and will reduce binding affinity. Consider truncating or replacing the exposed fragment.
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.592 kcal/mol/HA) ✓ Good fit quality (FQ -5.82) ✓ Good H-bonds (3 bonds) ✓ Deep burial (74% SASA buried) ✓ Lipophilic contacts well-matched (94%) ✗ Moderate strain (12.1 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (21)
Score
-18.936
kcal/mol
LE
-0.592
kcal/mol/HA
Fit Quality
-5.82
FQ (Leeson)
HAC
32
heavy atoms
MW
488
Da
LogP
5.33
cLogP
Strain ΔE
12.1 kcal/mol
SASA buried
74%
Lipo contact
94% BSA apolar/total
SASA unbound
718 Ų
Apolar buried
496 Ų

Interaction summary

HB 3 HY 8 PI 0 CLASH 8 ⚠ Exposure 76%

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

🚨Solvent-exposed hydrophobic surface — desolvation penalty likely
77% of hydrophobic surface is solvent-exposed (20/26 atoms). Large non-polar area without protein contacts incurs a desolvation penalty and will reduce binding affinity. Consider truncating or replacing the exposed fragment.
Non-polar atoms 26 Buried (contacted) 6 Exposed 20 LogP 5.33 H-bonds 3
Exposed fragments: phenyl (5/6 atoms exposed)phenyl (6/6 atoms exposed)phenyl (6/6 atoms exposed)phenyl (4/6 atoms exposed)aliphatic chain/group (1 atom exposed)
Final rank5.396Score-18.936
Inter norm-0.695Intra norm0.103
Top1000noExcludedno
Contacts16H-bonds3
Artifact reasongeometry warning; 21 clashes; 2 protein clashes
Residues
ARG242 ARG337 ASP243 ASP385 ASP47 GLU384 LEU339 LEU382 LYS51 MET386 PHE383 PRO338 SER282 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 overlap9Native recall0.60
Jaccard0.41RMSD-
HB strict0Strict recall0.00
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
632 1.243029950327408 -0.715524 -23.1313 0 17 0 0.00 0.00 - no Open
635 1.4623639465361715 -0.810768 -24.5451 5 18 0 0.00 0.00 - no Open
655 3.2994755327115124 -0.702435 -21.7347 3 18 0 0.00 0.00 - no Open
650 3.6866953484990788 -0.880427 -27.0054 2 15 0 0.00 0.00 - no Open
642 5.395951478542988 -0.694543 -18.9361 3 16 9 0.60 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 -18.936kcal/mol
Ligand efficiency (LE) -0.5918kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.819
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 32HA

Physicochemical properties

Molecular weight 488.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.33
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 12.12kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 131.25kcal/mol
Minimised FF energy 119.12kcal/mol

SASA & burial

✓ computed
SASA (unbound) 718.4Ų
Total solvent-accessible surface area of free ligand
BSA total 530.5Ų
Buried surface area upon binding
BSA apolar 496.2Ų
Hydrophobic contacts buried
BSA polar 34.2Ų
Polar contacts buried
Fraction buried 73.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 93.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2587.0Ų
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 3349.0Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1420.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)