FAIRMol

Z14242918

Pose ID 9374 Compound 4121 Pose 566

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 Z14242918
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 mixed SASA done
Strain ΔE
39.8 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.53, Jaccard 0.35, H-bond role recall 0.00
Burial
79%
Hydrophobic fit
76%
Reason: no major geometry red flags detected
2 protein-contact clashes 55% of hydrophobic surface appears solvent-exposed (11/20 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 (-0.639 kcal/mol/HA) ✓ Good fit quality (FQ -6.17) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (79% SASA buried) ✓ Lipophilic contacts well-matched (76%) ✗ Very high strain energy (39.8 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (6)
Score
-19.183
kcal/mol
LE
-0.639
kcal/mol/HA
Fit Quality
-6.17
FQ (Leeson)
HAC
30
heavy atoms
MW
416
Da
LogP
1.61
cLogP
Strain ΔE
39.8 kcal/mol
SASA buried
79%
Lipo contact
76% BSA apolar/total
SASA unbound
688 Ų
Apolar buried
415 Ų

Interaction summary

HB 6 HY 8 PI 0 CLASH 2 ⚠ Exposure 55%

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

⚠️Partial hydrophobic solvent exposure
55% of hydrophobic surface appears solvent-exposed (11/20 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 20 Buried (contacted) 9 Exposed 11 LogP 1.61 H-bonds 6
Exposed fragments: phenyl (6/6 atoms exposed)phenyl (3/5 atoms exposed)aliphatic chain/group (3 atoms exposed)
Final rank2.075Score-19.183
Inter norm-0.749Intra norm0.110
Top1000noExcludedno
Contacts16H-bonds6
Artifact reasongeometry warning; 6 clashes; 1 protein clash; high strain Δ 39.8
Residues
ALA283 ARG22 ARG342 ARG50 ASP385 ASP44 ASP47 CYS26 GLN341 GLU343 GLU384 LEU25 LEU382 SER282 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 overlap8Native recall0.53
Jaccard0.35RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

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
566 2.0749274785898595 -0.749386 -19.1825 6 16 8 0.53 0.00 - 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 -19.183kcal/mol
Ligand efficiency (LE) -0.6394kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.168
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 416.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.61
Lipinski: ≤ 5
Rotatable bonds 3

Conformational strain (MMFF94s)

Strain energy (ΔE) 39.83kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -31.18kcal/mol
Minimised FF energy -71.01kcal/mol

SASA & burial

✓ computed
SASA (unbound) 687.6Ų
Total solvent-accessible surface area of free ligand
BSA total 545.1Ų
Buried surface area upon binding
BSA apolar 415.4Ų
Hydrophobic contacts buried
BSA polar 129.7Ų
Polar contacts buried
Fraction buried 79.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 76.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2515.1Ų
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 1363.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)