FAIRMol

OHD_TB2021_42

Pose ID 8874 Compound 1935 Pose 66

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_TB2021_42
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
Promising but geometrically suspicious
Binding strong Geometry low Native mixed SASA done
Strain ΔE
32.0 kcal/mol
Protein clashes
0
Internal clashes
7
Native overlap
contact recall 0.33, Jaccard 0.25, H-bond role recall 0.40
Burial
77%
Hydrophobic fit
77%
Reason: 7 internal clashes
7 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.090 kcal/mol/HA) ✓ Good fit quality (FQ -9.30) ✓ Good H-bonds (5 bonds) ✓ Deep burial (77% SASA buried) ✓ Lipophilic contacts well-matched (77%) ✗ Very high strain energy (32.0 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (7)
Score
-22.896
kcal/mol
LE
-1.090
kcal/mol/HA
Fit Quality
-9.30
FQ (Leeson)
HAC
21
heavy atoms
MW
293
Da
LogP
-0.09
cLogP
Strain ΔE
32.0 kcal/mol
SASA buried
77%
Lipo contact
77% BSA apolar/total
SASA unbound
514 Ų
Apolar buried
305 Ų

Interaction summary

HB 5 HY 5 PI 0 CLASH 0

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

No clash · clashes detected for this pose.
Final rank2.406Score-22.896
Inter norm-1.121Intra norm0.031
Top1000noExcludedno
Contacts10H-bonds5
Artifact reasongeometry warning; 7 clashes; 2 protein clashes; high strain Δ 32.0
Residues
ARG22 ASN20 CYS26 GLN341 GLU343 GLU384 LEU25 LEU382 THR21 THR285

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 overlap5Native recall0.33
Jaccard0.25RMSD-
HB strict2Strict recall0.33
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
47 -0.4914665010959945 -1.38398 -28.6516 10 12 0 0.00 0.00 - no Open
66 2.405824128180462 -1.12136 -22.8958 5 10 5 0.33 0.40 - 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 -22.896kcal/mol
Ligand efficiency (LE) -1.0903kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.300
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 21HA

Physicochemical properties

Molecular weight 293.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) -0.09
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 32.03kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 109.87kcal/mol
Minimised FF energy 77.84kcal/mol

SASA & burial

✓ computed
SASA (unbound) 514.5Ų
Total solvent-accessible surface area of free ligand
BSA total 395.3Ų
Buried surface area upon binding
BSA apolar 305.0Ų
Hydrophobic contacts buried
BSA polar 90.3Ų
Polar contacts buried
Fraction buried 76.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 77.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2390.2Ų
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 1373.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)