FAIRMol

OHD_MAC_21

Pose ID 9157 Compound 605 Pose 349

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_21
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
31.9 kcal/mol
Protein clashes
4
Internal clashes
4
Native overlap
contact recall 0.73, Jaccard 0.55, H-bond role recall 0.60
Burial
79%
Hydrophobic fit
79%
Reason: no major geometry red flags detected
4 protein-contact clashes 4 intramolecular clashes 41% of hydrophobic surface appears solvent-exposed (9/22 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 (-0.492 kcal/mol/HA) ✓ Good fit quality (FQ -4.84) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (79% SASA buried) ✓ Lipophilic contacts well-matched (79%) ✗ Very high strain energy (31.9 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (15)
Score
-15.757
kcal/mol
LE
-0.492
kcal/mol/HA
Fit Quality
-4.84
FQ (Leeson)
HAC
32
heavy atoms
MW
431
Da
LogP
3.08
cLogP
Strain ΔE
31.9 kcal/mol
SASA buried
79%
Lipo contact
79% BSA apolar/total
SASA unbound
733 Ų
Apolar buried
459 Ų

Interaction summary

HB 9 HY 11 PI 0 CLASH 4 ⚠ Exposure 40%
⚠️Partial hydrophobic solvent exposure
41% of hydrophobic surface appears solvent-exposed (9/22 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 22 Buried (contacted) 13 Exposed 9 LogP 3.08 H-bonds 9
Exposed fragments: phenyl (2/6 atoms exposed)phenyl (6/6 atoms exposed)aliphatic chain/group (1 atom exposed)
Final rank4.004Score-15.757
Inter norm-0.789Intra norm0.297
Top1000noExcludedno
Contacts16H-bonds9
Artifact reasongeometry warning; 15 clashes; 2 protein clashes; high strain Δ 31.9
Residues
ARG22 ARG342 ASP385 CYS26 GLN341 GLU343 GLU384 LEU25 LEU339 LEU382 PHE284 PRO340 PRO344 SER282 THR21 THR285

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 overlap11Native recall0.73
Jaccard0.55RMSD-
HB strict2Strict recall0.33
HB same residue+role3HB role recall0.60
HB same residue3HB residue recall0.60

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
430 3.729059286423035 -0.820386 -24.8239 6 18 0 0.00 0.00 - no Open
349 4.0043720632545305 -0.789359 -15.7571 9 16 11 0.73 0.60 - no Current
431 5.253396721225688 -0.741551 -19.359 7 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 -15.757kcal/mol
Ligand efficiency (LE) -0.4924kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -4.842
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 32HA

Physicochemical properties

Molecular weight 431.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.08
Lipinski: ≤ 5
Rotatable bonds 11

Conformational strain (MMFF94s)

Strain energy (ΔE) 31.91kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 100.47kcal/mol
Minimised FF energy 68.56kcal/mol

SASA & burial

✓ computed
SASA (unbound) 732.6Ų
Total solvent-accessible surface area of free ligand
BSA total 580.7Ų
Buried surface area upon binding
BSA apolar 458.6Ų
Hydrophobic contacts buried
BSA polar 122.1Ų
Polar contacts buried
Fraction buried 79.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 79.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2558.8Ų
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 1384.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)