FAIRMol

Z49620451

Pose ID 9255 Compound 479 Pose 447

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 Z49620451
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
33.6 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.60, Jaccard 0.45, H-bond role recall 0.20
Burial
72%
Hydrophobic fit
79%
Reason: no major geometry red flags detected
3 protein-contact clashes 3 intramolecular clashes 71% of hydrophobic surface is solvent-exposed (15/21 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 (-1.061 kcal/mol/HA) ✓ Good fit quality (FQ -9.90) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (72% SASA buried) ✓ Lipophilic contacts well-matched (79%) ✗ Very high strain energy (33.6 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (18)
Score
-28.646
kcal/mol
LE
-1.061
kcal/mol/HA
Fit Quality
-9.90
FQ (Leeson)
HAC
27
heavy atoms
MW
360
Da
LogP
3.51
cLogP
Strain ΔE
33.6 kcal/mol
SASA buried
72%
Lipo contact
79% BSA apolar/total
SASA unbound
604 Ų
Apolar buried
347 Ų

Interaction summary

HB 7 HY 1 PI 0 CLASH 3 ⚠ Exposure 71%
🚨Solvent-exposed hydrophobic surface — desolvation penalty likely
71% of hydrophobic surface is solvent-exposed (15/21 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 21 Buried (contacted) 6 Exposed 15 LogP 3.51 H-bonds 7
Exposed fragments: phenyl (6/6 atoms exposed)phenyl (6/6 atoms exposed)aliphatic chain/group (3 atoms exposed)
Final rank5.222Score-28.646
Inter norm-0.982Intra norm-0.079
Top1000noExcludedno
Contacts14H-bonds7
Artifact reasongeometry warning; 18 clashes; 3 protein clashes; high strain Δ 33.6
Residues
ARG242 ARG337 ASP243 ASP385 GLU384 LEU339 LEU382 MET386 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
Jaccard0.45RMSD-
HB strict0Strict recall0.00
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.20

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
419 0.7601486257451542 -1.40602 -42.0237 11 15 0 0.00 0.00 - no Open
453 2.1017127720934683 -0.978924 -23.5299 4 18 0 0.00 0.00 - no Open
459 2.1985615726132846 -0.716795 -20.6273 6 12 0 0.00 0.00 - no Open
498 2.7548777503622417 -0.986708 -29.2004 7 17 0 0.00 0.00 - no Open
474 2.7551494810251014 -0.871048 -16.3839 6 15 0 0.00 0.00 - no Open
493 2.9897441915583345 -0.968749 -29.3933 5 17 0 0.00 0.00 - no Open
430 3.4369798200375854 -1.33416 -37.134 10 17 0 0.00 0.00 - no Open
449 3.952825963730769 -1.23111 -29.9411 14 18 0 0.00 0.00 - no Open
447 5.221684895759614 -0.982443 -28.6458 7 14 9 0.60 0.20 - 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 -28.646kcal/mol
Ligand efficiency (LE) -1.0610kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.898
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 360.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.51
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 33.57kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 133.16kcal/mol
Minimised FF energy 99.59kcal/mol

SASA & burial

✓ computed
SASA (unbound) 604.4Ų
Total solvent-accessible surface area of free ligand
BSA total 436.6Ų
Buried surface area upon binding
BSA apolar 346.7Ų
Hydrophobic contacts buried
BSA polar 90.0Ų
Polar contacts buried
Fraction buried 72.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 79.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2438.1Ų
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 1411.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)