FAIRMol

OHD_Leishmania_350

Pose ID 8839 Compound 399 Pose 31

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_Leishmania_350
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
34.3 kcal/mol
Protein clashes
0
Internal clashes
3
Native overlap
contact recall 0.40, Jaccard 0.29, H-bond role recall 0.60
Burial
59%
Hydrophobic fit
99%
Reason: no major geometry red flags detected
3 intramolecular clashes 100% of hydrophobic surface is solvent-exposed (22/22 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 ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.754 kcal/mol/HA) ✓ Good fit quality (FQ -7.20) ✓ Good H-bonds (5 bonds) ✓ Good burial (59% SASA buried) ✓ Lipophilic contacts well-matched (99%) ✗ Very high strain energy (34.3 kcal/mol) ✗ Geometry warnings
Score
-21.867
kcal/mol
LE
-0.754
kcal/mol/HA
Fit Quality
-7.20
FQ (Leeson)
HAC
29
heavy atoms
MW
411
Da
LogP
-4.55
cLogP
Strain ΔE
34.3 kcal/mol
SASA buried
59%
Lipo contact
99% BSA apolar/total
SASA unbound
772 Ų
Apolar buried
453 Ų

Interaction summary

HB 5 HY 0 PI 0 CLASH 0 ⚠ 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

No clash · clashes detected for this pose.
🚨Solvent-exposed hydrophobic surface — desolvation penalty likely
100% of hydrophobic surface is solvent-exposed (22/22 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 22 Buried (contacted) 0 Exposed 22 LogP -4.55 H-bonds 5
Exposed fragments: pyridyl (5/6 atoms exposed)pyridyl (19/26 atoms exposed)
Final rank1.894Score-21.867
Inter norm-0.754Intra norm0.000
Top1000noExcludedno
Contacts12H-bonds5
Artifact reasongeometry warning; 3 clashes; 2 protein clashes; high strain Δ 34.3
Residues
ALA283 ARG22 ARG337 ASN20 ASP385 GLU384 LEU339 PHE284 SER282 THR21 THR285 TYR370

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 overlap6Native recall0.40
Jaccard0.29RMSD-
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
22 0.026034593906726175 -0.910505 -26.4046 1 20 0 0.00 0.00 - no Open
31 1.893535960009002 -0.754031 -21.8669 5 12 6 0.40 0.60 - no Current
20 2.3400175302541997 -1.02046 -29.5932 7 21 0 0.00 0.00 - no Open
26 2.3479370783872295 -1.01555 -29.4509 7 21 0 0.00 0.00 - no Open
16 3.4877812498585308 -0.867403 -25.1507 7 20 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 -21.867kcal/mol
Ligand efficiency (LE) -0.7540kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.198
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 410.7Da
Lipinski: ≤ 500 Da
LogP (cLogP) -4.55
Lipinski: ≤ 5
Rotatable bonds 0

Conformational strain (MMFF94s)

Strain energy (ΔE) 34.31kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 490.55kcal/mol
Minimised FF energy 456.24kcal/mol

SASA & burial

✓ computed
SASA (unbound) 771.6Ų
Total solvent-accessible surface area of free ligand
BSA total 456.8Ų
Buried surface area upon binding
BSA apolar 453.4Ų
Hydrophobic contacts buried
BSA polar 3.4Ų
Polar contacts buried
Fraction buried 59.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 99.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2735.1Ų
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 1377.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)