FAIRMol

KB_HAT_100

Pose ID 8945 Compound 2940 Pose 137

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 KB_HAT_100
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
28.8 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.33, Jaccard 0.25, H-bond role recall 0.20
Burial
69%
Hydrophobic fit
68%
Reason: no major geometry red flags detected
3 protein-contact clashes 3 intramolecular clashes 57% of hydrophobic surface appears solvent-exposed (12/21 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.788 kcal/mol/HA) ✓ Good fit quality (FQ -7.52) ✓ Good H-bonds (5 bonds) ✓ Deep burial (69% SASA buried) ✓ Lipophilic contacts well-matched (68%) ✗ High strain energy (28.8 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (15)
Score
-22.851
kcal/mol
LE
-0.788
kcal/mol/HA
Fit Quality
-7.52
FQ (Leeson)
HAC
29
heavy atoms
MW
406
Da
LogP
3.74
cLogP
Final rank
4.2003
rank score
Inter norm
-0.854
normalised
Contacts
10
H-bonds 10
Strain ΔE
28.8 kcal/mol
SASA buried
69%
Lipo contact
68% BSA apolar/total
SASA unbound
645 Ų
Apolar buried
304 Ų

Interaction summary

HBA 5 HY 3 PI 0 CLASH 3

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 overlap5Native recall0.33
Jaccard0.25RMSD-
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
127 3.127858519265289 -0.653635 -14.5608 5 9 0 0.00 0.00 - no Open
122 3.471987782665667 -1.11657 -28.4331 5 19 0 0.00 0.00 - no Open
96 3.9466631181326814 -1.13422 -29.022 5 19 0 0.00 0.00 - no Open
137 4.20025134010485 -0.854363 -22.8507 10 10 5 0.33 0.20 - no Current
70 5.716832078836834 -0.961696 -23.7608 9 20 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 -22.851kcal/mol
Ligand efficiency (LE) -0.7880kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.522
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 406.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.74
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 28.76kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 85.41kcal/mol
Minimised FF energy 56.65kcal/mol

SASA & burial

✓ computed
SASA (unbound) 644.8Ų
Total solvent-accessible surface area of free ligand
BSA total 444.1Ų
Buried surface area upon binding
BSA apolar 303.8Ų
Hydrophobic contacts buried
BSA polar 140.3Ų
Polar contacts buried
Fraction buried 68.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 68.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2430.3Ų
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 1406.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)