FAIRMol

Z56960396

Pose ID 9389 Compound 4168 Pose 581

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 Z56960396
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 and worth follow-up
Binding strong Geometry medium Native mixed SASA done
Strain ΔE
12.7 kcal/mol
Protein clashes
5
Internal clashes
5
Native overlap
contact recall 0.47, Jaccard 0.35, H-bond role recall 0.20
Burial
75%
Hydrophobic fit
71%
Reason: no major geometry red flags detected
5 protein-contact clashes 5 intramolecular clashes 64% of hydrophobic surface is solvent-exposed (9/14 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 ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.161 kcal/mol/HA) ✓ Good fit quality (FQ -9.90) ✓ Good H-bonds (5 bonds) ✓ Deep burial (75% SASA buried) ✓ Lipophilic contacts well-matched (71%) ✗ Moderate strain (12.7 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)
Score
-24.387
kcal/mol
LE
-1.161
kcal/mol/HA
Fit Quality
-9.90
FQ (Leeson)
HAC
21
heavy atoms
MW
316
Da
LogP
3.54
cLogP
Strain ΔE
12.7 kcal/mol
SASA buried
75%
Lipo contact
71% BSA apolar/total
SASA unbound
525 Ų
Apolar buried
281 Ų

Interaction summary

HB 5 HY 4 PI 0 CLASH 5 ⚠ Exposure 64%
🚨Solvent-exposed hydrophobic surface — desolvation penalty likely
64% of hydrophobic surface is solvent-exposed (9/14 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 14 Buried (contacted) 5 Exposed 9 LogP 3.54 H-bonds 5
Exposed fragments: phenyl (2/5 atoms exposed)phenyl (6/6 atoms exposed)aliphatic chain/group (1 atom exposed)
Final rank3.023Score-24.387
Inter norm-1.039Intra norm-0.122
Top1000noExcludedno
Contacts12H-bonds5
Artifact reasongeometry warning; 9 clashes; 2 protein clashes
Residues
ALA334 ARG242 ARG337 ASP243 ASP385 GLU384 LEU339 PHE383 PRO338 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 overlap7Native recall0.47
Jaccard0.35RMSD-
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
588 1.1340887656758711 -1.56489 -29.4266 6 17 0 0.00 0.00 - no Open
581 3.0226653292127033 -1.03926 -24.387 5 12 7 0.47 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 -24.387kcal/mol
Ligand efficiency (LE) -1.1613kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.905
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 21HA

Physicochemical properties

Molecular weight 315.8Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.54
Lipinski: ≤ 5
Rotatable bonds 3

Conformational strain (MMFF94s)

Strain energy (ΔE) 12.71kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 133.49kcal/mol
Minimised FF energy 120.77kcal/mol

SASA & burial

✓ computed
SASA (unbound) 525.1Ų
Total solvent-accessible surface area of free ligand
BSA total 395.8Ų
Buried surface area upon binding
BSA apolar 281.0Ų
Hydrophobic contacts buried
BSA polar 114.8Ų
Polar contacts buried
Fraction buried 75.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 71.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2345.9Ų
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 1409.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)