FAIRMol

Z426369012

Pose ID 9360 Compound 855 Pose 552

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 Z426369012
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
39.9 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.53, Jaccard 0.40, H-bond role recall 0.20
Burial
67%
Hydrophobic fit
79%
Reason: no major geometry red flags detected
3 protein-contact clashes 3 intramolecular clashes 100% of hydrophobic surface is solvent-exposed (22/22 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 (-0.469 kcal/mol/HA) ✓ Good fit quality (FQ -4.48) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (67% SASA buried) ✓ Lipophilic contacts well-matched (79%) ✗ Very high strain energy (39.9 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-13.607
kcal/mol
LE
-0.469
kcal/mol/HA
Fit Quality
-4.48
FQ (Leeson)
HAC
29
heavy atoms
MW
405
Da
LogP
4.40
cLogP
Strain ΔE
39.9 kcal/mol
SASA buried
67%
Lipo contact
79% BSA apolar/total
SASA unbound
703 Ų
Apolar buried
371 Ų

Interaction summary

HB 6 HY 0 PI 0 CLASH 3 ⚠ Exposure 100%
🚨Solvent-exposed hydrophobic surface — desolvation penalty likely
100% of hydrophobic surface is solvent-exposed (22/22 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 22 Buried (contacted) 0 Exposed 22 LogP 4.4 H-bonds 6
Exposed fragments: phenyl (4/6 atoms exposed)phenyl (6/6 atoms exposed)phenyl (3/5 atoms exposed)phenyl (6/6 atoms exposed)aliphatic chain/group (4 atoms exposed)
Final rank2.614Score-13.607
Inter norm-0.788Intra norm0.318
Top1000noExcludedno
Contacts13H-bonds6
Artifact reasongeometry warning; 10 clashes; 1 protein clash; high strain Δ 39.9
Residues
ARG242 ARG337 ARG50 ASP243 ASP385 ASP47 GLU384 LEU339 MET386 PHE383 SER282 THR241 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
Jaccard0.40RMSD-
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

No hy · hydrophobic contacts detected for this pose.

CLASH · Clashes

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
550 0.7089563717843353 -1.16107 -32.7603 7 17 0 0.00 0.00 - no Open
574 1.563273033931963 -0.894916 -24.9454 11 16 0 0.00 0.00 - no Open
570 1.8983530217649327 -0.895592 -25.6438 4 17 0 0.00 0.00 - no Open
540 2.188469065975241 -1.0946 -32.4734 8 16 0 0.00 0.00 - no Open
551 2.207343591774533 -0.891831 -26.4179 4 16 0 0.00 0.00 - no Open
552 2.6137459609030174 -0.787817 -13.6074 6 13 8 0.53 0.20 - no Current
549 2.8587233897033926 -0.913163 -23.9116 13 18 0 0.00 0.00 - no Open
575 3.0497306452736783 -0.876647 -24.2283 4 18 0 0.00 0.00 - no Open
579 3.14401003598703 -0.81951 -20.0537 7 14 0 0.00 0.00 - no Open
557 3.2521974787035832 -0.981282 -25.668 4 19 0 0.00 0.00 - no Open
564 3.7549715815477414 -1.09269 -33.0977 16 20 0 0.00 0.00 - no Open
549 4.546760674497128 -1.06745 -31.929 6 19 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 -13.607kcal/mol
Ligand efficiency (LE) -0.4692kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -4.479
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 405.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.40
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 39.90kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 146.88kcal/mol
Minimised FF energy 106.99kcal/mol

SASA & burial

✓ computed
SASA (unbound) 702.8Ų
Total solvent-accessible surface area of free ligand
BSA total 471.4Ų
Buried surface area upon binding
BSA apolar 371.1Ų
Hydrophobic contacts buried
BSA polar 100.3Ų
Polar contacts buried
Fraction buried 67.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2502.7Ų
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 1413.6Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)