FAIRMol

KB_HAT_25

Pose ID 8932 Compound 108 Pose 124

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_25
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
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
16.9 kcal/mol
Protein clashes
0
Internal clashes
15
Native overlap
contact recall 0.73, Jaccard 0.58, H-bond role recall 0.40
Burial
65%
Hydrophobic fit
74%
Reason: 15 internal clashes
15 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.675 kcal/mol/HA) ✓ Good fit quality (FQ -6.75) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (65% SASA buried) ✓ Lipophilic contacts well-matched (74%) ✗ Moderate strain (16.9 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (15)
Score
-22.949
kcal/mol
LE
-0.675
kcal/mol/HA
Fit Quality
-6.75
FQ (Leeson)
HAC
34
heavy atoms
MW
476
Da
LogP
2.21
cLogP
Strain ΔE
16.9 kcal/mol
SASA buried
65%
Lipo contact
74% BSA apolar/total
SASA unbound
785 Ų
Apolar buried
383 Ų

Interaction summary

HB 7 HY 10 PI 0 CLASH 0
Final rank4.693Score-22.949
Inter norm-0.645Intra norm-0.030
Top1000noExcludedno
Contacts15H-bonds7
Artifact reasongeometry warning; 15 clashes; 3 protein clashes
Residues
ARG22 ARG242 ARG337 ASN20 ASP243 ASP385 CYS26 GLN341 GLU384 LEU25 LEU339 LEU382 THR21 THR241 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 overlap11Native recall0.73
Jaccard0.58RMSD-
HB strict2Strict recall0.33
HB same residue+role2HB role recall0.40
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

No clash · clashes detected for this pose.

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
116 0.9967124239667426 -0.835107 -24.9422 1 19 0 0.00 0.00 - no Open
145 1.3995751921199313 -0.88415 -27.5642 3 16 0 0.00 0.00 - no Open
182 1.4861130235883124 -0.855269 -26.7745 4 22 0 0.00 0.00 - no Open
140 1.615020829250697 -0.925503 -28.3157 6 17 0 0.00 0.00 - no Open
161 2.662027008092362 -0.751934 -23.4535 3 14 0 0.00 0.00 - no Open
149 3.0092960382301914 -0.757482 -21.0618 2 22 0 0.00 0.00 - no Open
117 3.133913752613804 -0.893126 -27.6382 10 20 0 0.00 0.00 - no Open
92 3.1897154297188073 -0.7343 -24.0617 7 15 0 0.00 0.00 - no Open
109 3.266242765469782 -0.81009 -22.6151 5 16 0 0.00 0.00 - no Open
95 3.6098926606982675 -0.795677 -23.8078 8 16 0 0.00 0.00 - no Open
150 3.6690791561020983 -0.768661 -24.4817 6 18 0 0.00 0.00 - no Open
91 3.8086261390469938 -0.740979 -20.0503 5 21 0 0.00 0.00 - no Open
124 4.692634237226219 -0.64544 -22.9491 7 15 11 0.73 0.40 - no Current
103 4.725842136853786 -0.76159 -22.4824 5 18 0 0.00 0.00 - no Open
118 4.790784883872673 -0.731769 -21.8142 8 17 0 0.00 0.00 - no Open
73 4.7962875837914805 -1.009 -30.2636 11 20 0 0.00 0.00 - no Open
46 5.044122438992116 -0.80531 -23.3978 7 15 0 0.00 0.00 - no Open
87 5.0598912182116695 -0.712441 -22.3133 4 21 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 -22.949kcal/mol
Ligand efficiency (LE) -0.6750kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.754
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 34HA

Physicochemical properties

Molecular weight 475.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.21
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 16.90kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 44.74kcal/mol
Minimised FF energy 27.84kcal/mol

SASA & burial

✓ computed
SASA (unbound) 785.5Ų
Total solvent-accessible surface area of free ligand
BSA total 513.5Ų
Buried surface area upon binding
BSA apolar 382.7Ų
Hydrophobic contacts buried
BSA polar 130.8Ų
Polar contacts buried
Fraction buried 65.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 74.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2554.5Ų
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 1409.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)