FAIRMol

Z1530532754

Pose ID 9349 Compound 3008 Pose 541

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 Z1530532754
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
21.2 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.53, Jaccard 0.42, H-bond role recall 0.00
Burial
72%
Hydrophobic fit
86%
Reason: no major geometry red flags detected
3 protein-contact clashes 3 intramolecular clashes 43% of hydrophobic surface appears solvent-exposed (9/21 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 (-0.758 kcal/mol/HA) ✓ Good fit quality (FQ -7.08) ✓ Deep burial (72% SASA buried) ✓ Lipophilic contacts well-matched (86%) ✗ High strain energy (21.2 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (5) ✗ Many internal clashes (12)
Score
-20.476
kcal/mol
LE
-0.758
kcal/mol/HA
Fit Quality
-7.08
FQ (Leeson)
HAC
27
heavy atoms
MW
404
Da
LogP
3.94
cLogP
Strain ΔE
21.2 kcal/mol
SASA buried
72%
Lipo contact
86% BSA apolar/total
SASA unbound
675 Ų
Apolar buried
419 Ų

Interaction summary

HB 2 HY 3 PI 0 CLASH 3 ⚠ Exposure 42%
⚠️Partial hydrophobic solvent exposure
43% of hydrophobic surface appears solvent-exposed (9/21 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 21 Buried (contacted) 12 Exposed 9 LogP 3.94 H-bonds 2
Exposed fragments: phenyl (4/6 atoms exposed)aliphatic chain/group (5 atoms exposed)
Final rank1.450Score-20.476
Inter norm-0.810Intra norm0.052
Top1000noExcludedno
Contacts12H-bonds2
Artifact reasongeometry warning; 12 clashes; 5 protein contact clashes; moderate strain Δ 21.2
Residues
ARG242 ARG337 ASP243 ASP385 GLU384 GLY240 LEU339 LYS51 SER282 THR241 TYR370 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 overlap8Native recall0.53
Jaccard0.42RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

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
539 0.6027912714060862 -1.19966 -29.2226 2 14 0 0.00 0.00 - no Open
541 1.4498956315614218 -0.810314 -20.4761 2 12 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 -20.476kcal/mol
Ligand efficiency (LE) -0.7584kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.075
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 404.0Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.94
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 21.17kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 157.78kcal/mol
Minimised FF energy 136.61kcal/mol

SASA & burial

✓ computed
SASA (unbound) 675.2Ų
Total solvent-accessible surface area of free ligand
BSA total 487.2Ų
Buried surface area upon binding
BSA apolar 418.6Ų
Hydrophobic contacts buried
BSA polar 68.7Ų
Polar contacts buried
Fraction buried 72.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 85.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2553.8Ų
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 1395.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)