FAIRMol

Z57388199

Pose ID 9429 Compound 101 Pose 621

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 Z57388199
PDB1NJJ

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Likely artefact or unreliable pose
Binding strong Geometry medium Native mixed SASA done
Strain ΔE
30.6 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.40, Jaccard 0.33, H-bond role recall 0.20
Burial
67%
Hydrophobic fit
84%
Reason: no major geometry red flags detected
2 protein-contact clashes 54% of hydrophobic surface appears solvent-exposed (14/26 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.568 kcal/mol/HA) ✓ Good fit quality (FQ -5.63) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (67% SASA buried) ✓ Lipophilic contacts well-matched (84%) ✗ Very high strain energy (30.6 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (8) ✗ Many internal clashes (13)
Score
-18.734
kcal/mol
LE
-0.568
kcal/mol/HA
Fit Quality
-5.63
FQ (Leeson)
HAC
33
heavy atoms
MW
434
Da
LogP
5.37
cLogP
Strain ΔE
30.6 kcal/mol
SASA buried
67%
Lipo contact
84% BSA apolar/total
SASA unbound
734 Ų
Apolar buried
416 Ų

Interaction summary

HB 7 HY 4 PI 0 CLASH 2 ⚠ Exposure 53%

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
54% of hydrophobic surface appears solvent-exposed (14/26 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 26 Buried (contacted) 12 Exposed 14 LogP 5.37 H-bonds 7
Exposed fragments: phenyl (3/5 atoms exposed)phenyl (6/6 atoms exposed)phenyl (3/5 atoms exposed)aliphatic chain/group (2 atoms exposed)
Final rank2.070Score-18.734
Inter norm-0.678Intra norm0.110
Top1000noExcludedno
Contacts9H-bonds7
Artifact reasongeometry warning; 13 clashes; 8 protein contact clashes; high strain Δ 30.6
Residues
ARG242 ARG337 ASP243 ASP385 GLU384 LEU339 PHE383 VAL335 VAL336

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
Jaccard0.33RMSD-
HB strict0Strict recall0.00
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.20

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
625 0.7633810195800521 -0.929769 -26.8898 1 16 0 0.00 0.00 - no Open
620 0.9612587282449622 -0.813433 -27.1209 1 19 0 0.00 0.00 - no Open
629 1.4412018690246926 -0.85665 -25.1232 3 19 0 0.00 0.00 - no Open
614 1.5629610996764716 -0.869106 -21.8212 6 17 0 0.00 0.00 - no Open
621 2.0695638733844843 -0.677901 -18.7342 7 9 6 0.40 0.20 - no Current
618 2.3966992058634435 -0.885772 -27.3014 5 18 0 0.00 0.00 - no Open
612 3.0264509688115697 -0.976286 -31.1583 10 18 0 0.00 0.00 - no Open
634 3.100681749180362 -0.601271 -18.9765 5 12 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 -18.734kcal/mol
Ligand efficiency (LE) -0.5677kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.633
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 33HA

Physicochemical properties

Molecular weight 434.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.37
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 30.59kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 128.99kcal/mol
Minimised FF energy 98.40kcal/mol

SASA & burial

✓ computed
SASA (unbound) 734.2Ų
Total solvent-accessible surface area of free ligand
BSA total 494.9Ų
Buried surface area upon binding
BSA apolar 416.1Ų
Hydrophobic contacts buried
BSA polar 78.8Ų
Polar contacts buried
Fraction buried 67.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 84.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2592.8Ų
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 1400.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)