FAIRMol

Z44089721

Pose ID 9368 Compound 2705 Pose 560

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 Z44089721
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
17.7 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.60, Jaccard 0.47, H-bond role recall 0.40
Burial
78%
Hydrophobic fit
90%
Reason: no major geometry red flags detected
3 protein-contact clashes 3 intramolecular clashes 53% of hydrophobic surface appears solvent-exposed (10/19 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 (-1.136 kcal/mol/HA) ✓ Good fit quality (FQ -9.87) ✓ Good H-bonds (5 bonds) ✓ Deep burial (78% SASA buried) ✓ Lipophilic contacts well-matched (90%) ✗ Moderate strain (17.7 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (11)
Score
-24.998
kcal/mol
LE
-1.136
kcal/mol/HA
Fit Quality
-9.87
FQ (Leeson)
HAC
22
heavy atoms
MW
291
Da
LogP
2.08
cLogP
Strain ΔE
17.7 kcal/mol
SASA buried
78%
Lipo contact
90% BSA apolar/total
SASA unbound
536 Ų
Apolar buried
375 Ų

Interaction summary

HB 5 HY 3 PI 0 CLASH 3 ⚠ Exposure 52%
⚠️Partial hydrophobic solvent exposure
53% of hydrophobic surface appears solvent-exposed (10/19 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 19 Buried (contacted) 9 Exposed 10 LogP 2.08 H-bonds 5
Exposed fragments: phenyl (5/6 atoms exposed)phenyl (6/6 atoms exposed)aliphatic chain/group (1 atom exposed)
Final rank4.212Score-24.998
Inter norm-1.233Intra norm0.097
Top1000noExcludedno
Contacts13H-bonds5
Artifact reasongeometry warning; 11 clashes; 3 protein clashes
Residues
ARG242 ARG337 ASP243 ASP385 GLU384 LEU339 LEU382 PHE383 PRO338 SER282 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 overlap9Native recall0.60
Jaccard0.47RMSD-
HB strict2Strict recall0.33
HB same residue+role2HB role recall0.40
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
546 0.029731111672750273 -1.42209 -29.4358 5 12 0 0.00 0.00 - no Open
580 1.2480988512509266 -1.09613 -22.2418 7 15 0 0.00 0.00 - no Open
568 1.6931489822353705 -1.44763 -29.3758 8 19 0 0.00 0.00 - no Open
582 2.445249942330083 -1.08626 -21.4915 4 9 0 0.00 0.00 - no Open
560 4.211949296852851 -1.23321 -24.9977 5 13 9 0.60 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 -24.998kcal/mol
Ligand efficiency (LE) -1.1363kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.865
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 22HA

Physicochemical properties

Molecular weight 291.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.08
Lipinski: ≤ 5
Rotatable bonds 3

Conformational strain (MMFF94s)

Strain energy (ΔE) 17.74kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 59.84kcal/mol
Minimised FF energy 42.10kcal/mol

SASA & burial

✓ computed
SASA (unbound) 536.4Ų
Total solvent-accessible surface area of free ligand
BSA total 418.2Ų
Buried surface area upon binding
BSA apolar 375.3Ų
Hydrophobic contacts buried
BSA polar 42.9Ų
Polar contacts buried
Fraction buried 78.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 89.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2460.7Ų
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 1381.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)