FAIRMol

OHD_MAC_36

Pose ID 9162 Compound 220 Pose 354

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 OHD_MAC_36
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
47.0 kcal/mol
Protein clashes
4
Internal clashes
4
Native overlap
contact recall 0.53, Jaccard 0.36, H-bond role recall 0.40
Burial
70%
Hydrophobic fit
76%
Reason: strain 47.0 kcal/mol
strain ΔE 47.0 kcal/mol 4 protein-contact clashes 4 intramolecular clashes 100% of hydrophobic surface is solvent-exposed (19/19 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 (-0.500 kcal/mol/HA) ✓ Good fit quality (FQ -4.82) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (70% SASA buried) ✓ Lipophilic contacts well-matched (76%) ✗ Extreme strain energy (47.0 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (16)
Score
-14.994
kcal/mol
LE
-0.500
kcal/mol/HA
Fit Quality
-4.82
FQ (Leeson)
HAC
30
heavy atoms
MW
424
Da
LogP
3.38
cLogP
Strain ΔE
47.0 kcal/mol
SASA buried
70%
Lipo contact
76% BSA apolar/total
SASA unbound
648 Ų
Apolar buried
342 Ų

Interaction summary

HB 8 HY 0 PI 0 CLASH 4 ⚠ Exposure 100%

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

No hy · hydrophobic contacts detected for this pose.

CLASH · Clashes

🚨Solvent-exposed hydrophobic surface — desolvation penalty likely
100% of hydrophobic surface is solvent-exposed (19/19 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 19 Buried (contacted) 0 Exposed 19 LogP 3.38 H-bonds 8
Exposed fragments: phenyl (6/6 atoms exposed)phenyl (4/6 atoms exposed)phenyl (4/6 atoms exposed)phenyl (6/6 atoms exposed)aliphatic chain/group (1 atom exposed)
Final rank5.137Score-14.994
Inter norm-0.911Intra norm0.411
Top1000noExcludedno
Contacts15H-bonds8
Artifact reasongeometry warning; 16 clashes; 3 protein clashes; high strain Δ 47.0
Residues
ARG242 ARG337 ARG50 ASP243 ASP385 ASP47 GLU384 LEU339 LYS51 MET386 PHE383 PRO338 SER282 THR241 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 overlap8Native recall0.53
Jaccard0.36RMSD-
HB strict1Strict recall0.17
HB same residue+role2HB role recall0.40
HB same residue2HB residue recall0.40

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
348 1.2100144411566822 -1.1538 -30.0904 8 14 0 0.00 0.00 - no Open
440 1.5676082891596326 -0.944621 -26.2353 6 17 0 0.00 0.00 - no Open
324 1.953134084273393 -1.11057 -27.5044 10 13 0 0.00 0.00 - no Open
366 2.2621186422673074 -0.969443 -20.4956 4 16 0 0.00 0.00 - no Open
395 3.0456434028459523 -0.899025 -26.9428 4 19 0 0.00 0.00 - no Open
404 3.8699170341381035 -0.865306 -16.7738 8 18 0 0.00 0.00 - no Open
441 4.081786304937585 -0.850126 -23.0145 5 13 0 0.00 0.00 - no Open
308 4.168792251622847 -1.07508 -26.8228 10 20 0 0.00 0.00 - no Open
332 4.318025370457191 -1.10906 -19.6858 11 21 0 0.00 0.00 - no Open
346 4.7100997309679045 -1.08757 -25.9544 15 23 0 0.00 0.00 - no Open
362 4.900785009688223 -0.929405 -16.6604 15 17 0 0.00 0.00 - no Open
354 5.137261587746673 -0.910504 -14.9944 8 15 8 0.53 0.40 - no Current
348 5.166887790616978 -0.859874 -15.7312 7 21 0 0.00 0.00 - no Open
309 5.312767912161138 -0.875177 -16.7657 14 15 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 -14.994kcal/mol
Ligand efficiency (LE) -0.4998kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -4.821
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 423.8Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.38
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 46.97kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 105.80kcal/mol
Minimised FF energy 58.83kcal/mol

SASA & burial

✓ computed
SASA (unbound) 648.0Ų
Total solvent-accessible surface area of free ligand
BSA total 451.3Ų
Buried surface area upon binding
BSA apolar 341.5Ų
Hydrophobic contacts buried
BSA polar 109.8Ų
Polar contacts buried
Fraction buried 69.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 75.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2407.8Ų
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 1442.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)