FAIRMol

Z32749009

Pose ID 9328 Compound 749 Pose 520

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 Z32749009
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
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
49.1 kcal/mol
Protein clashes
5
Internal clashes
5
Native overlap
contact recall 0.60, Jaccard 0.39, H-bond role recall 0.20
Burial
82%
Hydrophobic fit
85%
Reason: strain 49.1 kcal/mol
strain ΔE 49.1 kcal/mol 5 protein-contact clashes 5 intramolecular clashes 55% of hydrophobic surface appears solvent-exposed (12/22 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 (-0.690 kcal/mol/HA) ✓ Good fit quality (FQ -6.73) ✓ Deep burial (82% SASA buried) ✓ Lipophilic contacts well-matched (85%) ✗ Extreme strain energy (49.1 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (13)
Score
-21.401
kcal/mol
LE
-0.690
kcal/mol/HA
Fit Quality
-6.73
FQ (Leeson)
HAC
31
heavy atoms
MW
442
Da
LogP
2.40
cLogP
Final rank
3.0480
rank score
Inter norm
-0.735
normalised
Contacts
17
H-bonds 5
Strain ΔE
49.1 kcal/mol
SASA buried
82%
Lipo contact
85% BSA apolar/total
SASA unbound
693 Ų
Apolar buried
483 Ų

Interaction summary

HBD 1 HBA 1 HY 8 PI 0 CLASH 5

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 2.

PI · π–π interactions

No pi · π–π interactions detected for this pose.

HY · Hydrophobic contacts

CLASH · Clashes

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
Jaccard0.39RMSD-
HB strict1Strict recall0.17
HB same residue+role1HB role recall0.20
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
514 0.6558532097014269 -1.02776 -29.0756 4 22 0 0.00 0.00 - no Open
554 1.1617524609102692 -0.835204 -25.4239 2 17 0 0.00 0.00 - no Open
523 1.4451295609246844 -0.825933 -21.5206 3 19 0 0.00 0.00 - no Open
520 3.04796278682881 -0.735347 -21.4009 5 17 9 0.60 0.20 - no Current
540 3.729498306386523 -0.880778 -29.7728 3 16 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 -21.401kcal/mol
Ligand efficiency (LE) -0.6904kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.726
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 31HA

Physicochemical properties

Molecular weight 441.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.40
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 49.10kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 84.36kcal/mol
Minimised FF energy 35.26kcal/mol

SASA & burial

✓ computed
SASA (unbound) 693.4Ų
Total solvent-accessible surface area of free ligand
BSA total 570.5Ų
Buried surface area upon binding
BSA apolar 482.7Ų
Hydrophobic contacts buried
BSA polar 87.7Ų
Polar contacts buried
Fraction buried 82.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 84.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2546.7Ų
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 1376.6Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)