FAIRMol

Z237995644

Pose ID 9382 Compound 285 Pose 574

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 Z237995644
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
11.4 kcal/mol
Protein clashes
4
Internal clashes
4
Native overlap
contact recall 0.53, Jaccard 0.44, H-bond role recall 0.00
Burial
72%
Hydrophobic fit
63%
Reason: no major geometry red flags detected
4 protein-contact clashes 4 intramolecular clashes 70% of hydrophobic surface is solvent-exposed (16/23 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 (-0.717 kcal/mol/HA) ✓ Good fit quality (FQ -6.92) ✓ Good H-bonds (4 bonds) ✓ Deep burial (72% SASA buried) ✓ Lipophilic contacts well-matched (63%) ✗ Moderate strain (11.4 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-21.510
kcal/mol
LE
-0.717
kcal/mol/HA
Fit Quality
-6.92
FQ (Leeson)
HAC
30
heavy atoms
MW
413
Da
LogP
5.30
cLogP
Strain ΔE
11.4 kcal/mol
SASA buried
72%
Lipo contact
63% BSA apolar/total
SASA unbound
679 Ų
Apolar buried
310 Ų

Interaction summary

HB 4 HY 7 PI 0 CLASH 4 ⚠ Exposure 69%

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

🚨Solvent-exposed hydrophobic surface — desolvation penalty likely
70% of hydrophobic surface is solvent-exposed (16/23 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 23 Buried (contacted) 7 Exposed 16 LogP 5.3 H-bonds 4
Exposed fragments: phenyl (6/6 atoms exposed)phenyl (6/6 atoms exposed)phenyl (2/5 atoms exposed)aliphatic chain/group (2 atoms exposed)
Final rank2.601Score-21.510
Inter norm-0.753Intra norm0.036
Top1000noExcludedno
Contacts11H-bonds4
Artifact reasongeometry warning; 10 clashes; 1 protein clash
Residues
ARG242 ARG337 ASP243 ASP385 GLU384 LEU339 PHE383 SER282 THR241 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 overlap8Native recall0.53
Jaccard0.44RMSD-
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
575 1.0399056885554303 -0.751969 -21.6104 1 17 0 0.00 0.00 - no Open
575 1.2383004177190995 -0.879713 -24.9612 3 14 0 0.00 0.00 - no Open
593 1.840988622981869 -0.872435 -23.9498 5 17 0 0.00 0.00 - no Open
601 2.3276582312652585 -0.752765 -24.4998 5 14 0 0.00 0.00 - no Open
574 2.6007481059821833 -0.753229 -21.5097 4 11 8 0.53 0.00 - no Current
599 2.7382383736726044 -1.03726 -27.9313 6 24 0 0.00 0.00 - no Open
594 3.260885981020757 -0.879028 -23.4199 4 16 0 0.00 0.00 - no Open
578 3.268899464166515 -1.08062 -31.5572 7 18 0 0.00 0.00 - no Open
605 4.277421972823018 -0.921936 -26.7502 11 14 0 0.00 0.00 - no Open
587 4.87930352531888 -1.00805 -27.8762 7 17 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 -21.510kcal/mol
Ligand efficiency (LE) -0.7170kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.916
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 413.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.30
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 11.45kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 56.54kcal/mol
Minimised FF energy 45.09kcal/mol

SASA & burial

✓ computed
SASA (unbound) 679.3Ų
Total solvent-accessible surface area of free ligand
BSA total 491.9Ų
Buried surface area upon binding
BSA apolar 309.8Ų
Hydrophobic contacts buried
BSA polar 182.1Ų
Polar contacts buried
Fraction buried 72.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 63.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2426.2Ų
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 1402.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)