FAIRMol

KB_HAT_187

Pose ID 8956 Compound 922 Pose 148

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 KB_HAT_187
PDB1NJJ

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Promising SASA cached
Promising and worth follow-up
Binding strong Geometry high Native strong SASA done
Strain ΔE
17.9 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.60, Jaccard 0.45, H-bond role recall 0.40
Burial
82%
Hydrophobic fit
94%
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-0.862 kcal/mol/HA) ✓ Good fit quality (FQ -8.04) ✓ Good H-bonds (3 bonds) ✓ Deep burial (82% SASA buried) ✓ Lipophilic contacts well-matched (94%) ✗ Moderate strain (17.9 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)
Score
-23.284
kcal/mol
LE
-0.862
kcal/mol/HA
Fit Quality
-8.04
FQ (Leeson)
HAC
27
heavy atoms
MW
426
Da
LogP
3.34
cLogP
Strain ΔE
17.9 kcal/mol
SASA buried
82%
Lipo contact
94% BSA apolar/total
SASA unbound
669 Ų
Apolar buried
514 Ų

Interaction summary

HB 3 HY 21 PI 0 CLASH 2
Final rank2.155Score-23.284
Inter norm-0.835Intra norm-0.027
Top1000noExcludedno
Contacts14H-bonds3
Artifact reasongeometry warning; 9 clashes; 1 protein clash
Residues
ARG22 ARG342 GLN341 GLU343 GLU348 GLU384 LEU25 LEU339 LEU382 PRO340 PRO344 PRO373 THR21 THR285

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 strict2Strict recall0.33
HB same residue+role2HB role recall0.40
HB same residue2HB residue recall0.40

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
112 1.0237228161835357 -0.921618 -20.3586 4 16 0 0.00 0.00 - no Open
112 1.1484773859344817 -0.881947 -22.294 5 13 0 0.00 0.00 - no Open
107 1.5906811673286758 -1.13802 -30.2193 3 18 0 0.00 0.00 - no Open
116 1.7368687972028278 -0.939455 -24.4564 5 14 0 0.00 0.00 - no Open
125 1.8705548783515578 -0.824677 -19.122 4 22 0 0.00 0.00 - no Open
111 1.9567266273999773 -0.941489 -19.4943 2 20 0 0.00 0.00 - no Open
148 2.1545192277817584 -0.83535 -23.2836 3 14 9 0.60 0.40 - no Current
134 2.3450479455114124 -0.937703 -23.0809 2 20 0 0.00 0.00 - no Open
87 2.657445309836105 -1.16369 -27.7545 7 18 0 0.00 0.00 - no Open
91 2.796280609468839 -1.05791 -24.8275 7 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 -23.284kcal/mol
Ligand efficiency (LE) -0.8624kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.045
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 426.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.34
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 17.95kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 10.34kcal/mol
Minimised FF energy -7.61kcal/mol

SASA & burial

✓ computed
SASA (unbound) 669.5Ų
Total solvent-accessible surface area of free ligand
BSA total 549.5Ų
Buried surface area upon binding
BSA apolar 514.0Ų
Hydrophobic contacts buried
BSA polar 35.5Ų
Polar contacts buried
Fraction buried 82.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 93.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2595.7Ų
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 1365.6Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)