FAIRMol

OHD_TC2_29

Pose ID 8924 Compound 3379 Pose 116

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_TC2_29
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 high Native mixed SASA done
Strain ΔE
20.1 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.40, Jaccard 0.30, H-bond role recall 0.20
Burial
68%
Hydrophobic fit
88%
Reason: no major geometry red flags detected
1 protein-contact clashes 57% of hydrophobic surface appears solvent-exposed (8/14 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 (-1.139 kcal/mol/HA) ✓ Good fit quality (FQ -9.33) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (68% SASA buried) ✓ Lipophilic contacts well-matched (88%) ✗ High strain energy (20.1 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-21.637
kcal/mol
LE
-1.139
kcal/mol/HA
Fit Quality
-9.33
FQ (Leeson)
HAC
19
heavy atoms
MW
254
Da
LogP
2.72
cLogP
Strain ΔE
20.1 kcal/mol
SASA buried
68%
Lipo contact
88% BSA apolar/total
SASA unbound
475 Ų
Apolar buried
287 Ų

Interaction summary

HB 8 HY 3 PI 0 CLASH 1 ⚠ Exposure 57%
⚠️Partial hydrophobic solvent exposure
57% of hydrophobic surface appears solvent-exposed (8/14 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 14 Buried (contacted) 6 Exposed 8 LogP 2.72 H-bonds 8
Exposed fragments: phenyl (2/6 atoms exposed)phenyl (6/6 atoms exposed)
Final rank2.206Score-21.637
Inter norm-1.221Intra norm0.082
Top1000noExcludedno
Contacts11H-bonds8
Artifact reasongeometry warning; 10 clashes; 1 protein clash; moderate strain Δ 20.1
Residues
ARG337 ASP243 ASP385 GLU384 LEU339 MET386 PHE383 PRO338 THR241 VAL335 VAL336

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 overlap6Native recall0.40
Jaccard0.30RMSD-
HB strict0Strict recall0.00
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.20

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
41 1.8753997848731598 -1.38099 -25.226 10 17 0 0.00 0.00 - no Open
116 2.2062497359710043 -1.221 -21.6368 8 11 6 0.40 0.20 - no Current
12 2.7857386804448216 -1.37931 -25.2377 10 17 0 0.00 0.00 - no Open
22 3.0044738864860054 -1.21972 -21.5448 8 11 6 0.40 0.20 - 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 -21.637kcal/mol
Ligand efficiency (LE) -1.1388kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.334
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 19HA

Physicochemical properties

Molecular weight 254.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.72
Lipinski: ≤ 5
Rotatable bonds 3

Conformational strain (MMFF94s)

Strain energy (ΔE) 20.09kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 62.85kcal/mol
Minimised FF energy 42.76kcal/mol

SASA & burial

✓ computed
SASA (unbound) 475.1Ų
Total solvent-accessible surface area of free ligand
BSA total 325.0Ų
Buried surface area upon binding
BSA apolar 287.1Ų
Hydrophobic contacts buried
BSA polar 37.9Ų
Polar contacts buried
Fraction buried 68.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 88.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2344.7Ų
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 1440.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)