FAIRMol

OHD_MAC_1

Pose ID 9150 Compound 1412 Pose 342

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 OHD_MAC_1
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
Promising but geometrically suspicious
Binding strong Geometry low Native mixed SASA done
Strain ΔE
40.1 kcal/mol
Protein clashes
6
Internal clashes
6
Native overlap
contact recall 0.53, Jaccard 0.31, H-bond role recall 0.20
Burial
78%
Hydrophobic fit
75%
Reason: 6 internal clashes
6 protein-contact clashes 6 intramolecular clashes 76% of hydrophobic surface is solvent-exposed (19/25 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 ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.690 kcal/mol/HA) ✓ Good fit quality (FQ -7.06) ✓ Strong H-bond network (11 bonds) ✓ Deep burial (78% SASA buried) ✓ Lipophilic contacts well-matched (75%) ✗ Extreme strain energy (40.1 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (17)
Score
-25.527
kcal/mol
LE
-0.690
kcal/mol/HA
Fit Quality
-7.06
FQ (Leeson)
HAC
37
heavy atoms
MW
493
Da
LogP
3.67
cLogP
Strain ΔE
40.1 kcal/mol
SASA buried
78%
Lipo contact
75% BSA apolar/total
SASA unbound
788 Ų
Apolar buried
462 Ų

Interaction summary

HB 11 HY 1 PI 0 CLASH 6 ⚠ Exposure 76%
🚨Solvent-exposed hydrophobic surface — desolvation penalty likely
76% of hydrophobic surface is solvent-exposed (19/25 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 25 Buried (contacted) 6 Exposed 19 LogP 3.67 H-bonds 11
Exposed fragments: phenyl (5/6 atoms exposed)phenyl (6/6 atoms exposed)phenyl (4/6 atoms exposed)phenyl (4/6 atoms exposed)aliphatic chain/group (2 atoms exposed)
Final rank6.093Score-25.527
Inter norm-0.763Intra norm0.073
Top1000noExcludedno
Contacts19H-bonds11
Artifact reasongeometry warning; 17 clashes; 3 protein clashes; high strain Δ 40.0
Residues
ARG242 ARG337 ARG50 ASP243 ASP385 ASP44 ASP47 GLU384 LEU339 LYS51 MET386 PHE383 PRO338 SER282 THR21 THR241 THR285 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 overlap8Native recall0.53
Jaccard0.31RMSD-
HB strict0Strict recall0.00
HB same residue+role1HB role recall0.20
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
353 2.015098068419916 -0.644222 -12.4849 8 15 0 0.00 0.00 - no Open
422 3.344179847059429 -0.757789 -22.5673 4 14 0 0.00 0.00 - no Open
385 3.613721224243601 -0.745122 -17.8461 6 16 0 0.00 0.00 - no Open
324 3.7829752552443856 -1.101 -35.0187 10 21 0 0.00 0.00 - no Open
359 3.9698352490279074 -0.644073 -22.3155 8 11 0 0.00 0.00 - no Open
313 4.694947483235921 -0.98281 -33.8871 13 24 0 0.00 0.00 - no Open
388 4.821725173570794 -0.777024 -25.3326 12 20 0 0.00 0.00 - no Open
342 6.092894906155297 -0.763123 -25.5269 11 19 8 0.53 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 -25.527kcal/mol
Ligand efficiency (LE) -0.6899kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.063
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 37HA

Physicochemical properties

Molecular weight 493.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.67
Lipinski: ≤ 5
Rotatable bonds 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 40.13kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 113.44kcal/mol
Minimised FF energy 73.31kcal/mol

SASA & burial

✓ computed
SASA (unbound) 788.0Ų
Total solvent-accessible surface area of free ligand
BSA total 615.0Ų
Buried surface area upon binding
BSA apolar 461.7Ų
Hydrophobic contacts buried
BSA polar 153.3Ų
Polar contacts buried
Fraction buried 78.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 75.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2537.9Ų
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 1411.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)