FAIRMol

ulfkktlib_3273

Pose ID 9033 Compound 1538 Pose 225

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 ulfkktlib_3273
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
69.1 kcal/mol
Protein clashes
4
Internal clashes
4
Native overlap
contact recall 0.33, Jaccard 0.25, H-bond role recall 0.60
Burial
76%
Hydrophobic fit
78%
Reason: strain 69.1 kcal/mol
strain ΔE 69.1 kcal/mol 4 protein-contact clashes 4 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-1.304 kcal/mol/HA) ✓ Good fit quality (FQ -10.69) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (76% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ Extreme strain energy (69.1 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (8)
Score
-24.773
kcal/mol
LE
-1.304
kcal/mol/HA
Fit Quality
-10.69
FQ (Leeson)
HAC
19
heavy atoms
MW
265
Da
LogP
-0.81
cLogP
Strain ΔE
69.1 kcal/mol
SASA buried
76%
Lipo contact
78% BSA apolar/total
SASA unbound
474 Ų
Apolar buried
284 Ų

Interaction summary

HB 8 HY 10 PI 0 CLASH 4
Final rank3.454Score-24.773
Inter norm-1.233Intra norm-0.071
Top1000noExcludedno
Contacts10H-bonds8
Artifact reasongeometry warning; 8 clashes; 2 protein clashes; high strain Δ 69.1
Residues
ALA334 ARG337 ASP243 ASP385 GLU384 LEU339 MET386 PHE383 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 overlap5Native recall0.33
Jaccard0.25RMSD-
HB strict2Strict recall0.33
HB same residue+role3HB role recall0.60
HB same residue3HB residue recall0.60

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
219 -0.2890034272782563 -1.33092 -26.072 2 10 0 0.00 0.00 - no Open
248 2.1468220711761954 -0.999302 -21.6209 7 7 0 0.00 0.00 - no Open
201 2.629379648213995 -1.31314 -24.7998 7 14 0 0.00 0.00 - no Open
225 3.453819368784842 -1.23301 -24.7733 8 10 5 0.33 0.60 - no Current
145 4.2835367831841324 -1.26072 -22.3371 9 12 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 -24.773kcal/mol
Ligand efficiency (LE) -1.3039kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.687
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 19HA

Physicochemical properties

Molecular weight 265.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) -0.81
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 69.06kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 153.19kcal/mol
Minimised FF energy 84.13kcal/mol

SASA & burial

✓ computed
SASA (unbound) 473.8Ų
Total solvent-accessible surface area of free ligand
BSA total 362.4Ų
Buried surface area upon binding
BSA apolar 283.7Ų
Hydrophobic contacts buried
BSA polar 78.7Ų
Polar contacts buried
Fraction buried 76.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2371.2Ų
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 1372.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)