FAIRMol

OHD_MAC_44

Pose ID 9164 Compound 1829 Pose 356

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_44
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
Weak or marginal quality
Binding strong Geometry medium Native strong SASA done
Strain ΔE
26.7 kcal/mol
Protein clashes
4
Internal clashes
4
Native overlap
contact recall 0.60, Jaccard 0.47, H-bond role recall 0.60
Burial
78%
Hydrophobic fit
75%
Reason: no major geometry red flags detected
4 protein-contact clashes 4 intramolecular clashes 54% of hydrophobic surface appears solvent-exposed (7/13 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.986 kcal/mol/HA) ✓ Good fit quality (FQ -8.41) ✓ Strong H-bond network (10 bonds) ✓ Deep burial (78% SASA buried) ✓ Lipophilic contacts well-matched (75%) ✗ High strain energy (26.7 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-20.707
kcal/mol
LE
-0.986
kcal/mol/HA
Fit Quality
-8.41
FQ (Leeson)
HAC
21
heavy atoms
MW
283
Da
LogP
1.46
cLogP
Strain ΔE
26.7 kcal/mol
SASA buried
78%
Lipo contact
75% BSA apolar/total
SASA unbound
520 Ų
Apolar buried
306 Ų

Interaction summary

HB 10 HY 2 PI 0 CLASH 4 ⚠ Exposure 53%

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

⚠️Partial hydrophobic solvent exposure
54% of hydrophobic surface appears solvent-exposed (7/13 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 13 Buried (contacted) 6 Exposed 7 LogP 1.46 H-bonds 10
Exposed fragments: phenyl (6/6 atoms exposed)aliphatic chain/group (1 atom exposed)
Final rank4.047Score-20.707
Inter norm-1.109Intra norm0.123
Top1000noExcludedno
Contacts13H-bonds10
Artifact reasongeometry warning; 10 clashes; 2 protein clashes; moderate strain Δ 26.7
Residues
ARG242 ARG337 ASP243 ASP385 GLU384 LEU339 LEU382 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 overlap9Native recall0.60
Jaccard0.47RMSD-
HB strict2Strict recall0.33
HB same residue+role3HB role recall0.60
HB same residue3HB residue recall0.60

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
328 0.19707021139489783 -1.49325 -29.8244 8 15 0 0.00 0.00 - no Open
353 0.5490560060659071 -1.55331 -25.1018 10 14 0 0.00 0.00 - no Open
365 1.6482397885984788 -1.213 -16.5073 4 12 0 0.00 0.00 - no Open
356 4.046945760056431 -1.10884 -20.7068 10 13 9 0.60 0.60 - no Current
366 4.38677596477459 -1.27472 -23.3387 13 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 -20.707kcal/mol
Ligand efficiency (LE) -0.9860kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.411
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 21HA

Physicochemical properties

Molecular weight 283.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.46
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 26.71kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 101.02kcal/mol
Minimised FF energy 74.31kcal/mol

SASA & burial

✓ computed
SASA (unbound) 520.4Ų
Total solvent-accessible surface area of free ligand
BSA total 407.4Ų
Buried surface area upon binding
BSA apolar 306.0Ų
Hydrophobic contacts buried
BSA polar 101.3Ų
Polar contacts buried
Fraction buried 78.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 75.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2376.6Ų
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 1387.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)