FAIRMol

Z56775819

Pose ID 9317 Compound 2295 Pose 509

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 Z56775819
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
23.0 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.40, Jaccard 0.26, H-bond role recall 0.00
Burial
76%
Hydrophobic fit
67%
Reason: no major geometry red flags detected
2 protein-contact clashes 100% of hydrophobic surface is solvent-exposed (17/17 atoms). Large non-polar area without protein contacts incurs a desolvation penalty and will reduce binding affinity. Consider truncating or replacing the exposed fragment.
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.069 kcal/mol/HA) ✓ Good fit quality (FQ -9.85) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (76% SASA buried) ✓ Lipophilic contacts well-matched (67%) ✗ High strain energy (23.0 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)
Score
-27.791
kcal/mol
LE
-1.069
kcal/mol/HA
Fit Quality
-9.85
FQ (Leeson)
HAC
26
heavy atoms
MW
364
Da
LogP
1.67
cLogP
Strain ΔE
23.0 kcal/mol
SASA buried
76%
Lipo contact
67% BSA apolar/total
SASA unbound
583 Ų
Apolar buried
296 Ų

Interaction summary

HB 9 HY 0 PI 0 CLASH 2 ⚠ Exposure 100%

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

No hy · hydrophobic contacts detected for this pose.

CLASH · Clashes

🚨Solvent-exposed hydrophobic surface — desolvation penalty likely
100% of hydrophobic surface is solvent-exposed (17/17 atoms). Large non-polar area without protein contacts incurs a desolvation penalty and will reduce binding affinity. Consider truncating or replacing the exposed fragment.
Non-polar atoms 17 Buried (contacted) 0 Exposed 17 LogP 1.67 H-bonds 9
Exposed fragments: phenyl (4/5 atoms exposed)phenyl (6/6 atoms exposed)phenyl (4/6 atoms exposed)phenyl (6/6 atoms exposed)aliphatic chain/group (1 atom exposed)
Final rank3.262Score-27.791
Inter norm-1.070Intra norm0.001
Top1000noExcludedno
Contacts14H-bonds9
Artifact reasongeometry warning; 9 clashes; 2 protein clashes; moderate strain Δ 23.0
Residues
ALA283 ARG242 ARG50 ASP243 ASP385 ASP44 ASP47 GLU384 LYS51 PHE284 SER282 THR21 THR241 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 overlap6Native recall0.40
Jaccard0.26RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
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
522 2.261262159608891 -0.956395 -21.4623 4 11 0 0.00 0.00 - no Open
532 2.445465122574451 -0.93199 -23.3803 13 17 0 0.00 0.00 - no Open
500 2.521021803203339 -1.41509 -32.6993 6 20 0 0.00 0.00 - no Open
517 2.5299445645219074 -0.770281 -19.8585 5 12 0 0.00 0.00 - no Open
509 3.262137122905528 -1.06992 -27.791 9 14 6 0.40 0.00 - no Current
544 3.481530108671423 -0.925088 -22.453 7 16 0 0.00 0.00 - no Open
497 4.064661269329177 -1.16787 -30.0605 6 15 0 0.00 0.00 - no Open
551 4.1785443525306984 -0.940747 -23.0358 6 13 0 0.00 0.00 - no Open
505 4.605833726720881 -1.07502 -27.6675 13 20 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 -27.791kcal/mol
Ligand efficiency (LE) -1.0689kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.848
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 26HA

Physicochemical properties

Molecular weight 364.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.67
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 23.03kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 60.91kcal/mol
Minimised FF energy 37.89kcal/mol

SASA & burial

✓ computed
SASA (unbound) 583.0Ų
Total solvent-accessible surface area of free ligand
BSA total 440.9Ų
Buried surface area upon binding
BSA apolar 296.4Ų
Hydrophobic contacts buried
BSA polar 144.5Ų
Polar contacts buried
Fraction buried 75.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 67.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2343.5Ų
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 1411.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)