FAIRMol

KB_Leish_40

Pose ID 8215 Compound 3258 Pose 85

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T13
T. brucei ODC (Active site) T. brucei Active site
Ligand KB_Leish_40
PDB1F3T

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
42.9 kcal/mol
Protein clashes
4
Internal clashes
4
Native overlap
contact recall 0.68, Jaccard 0.57, H-bond role recall 0.29
Burial
73%
Hydrophobic fit
84%
Reason: strain 42.9 kcal/mol
strain ΔE 42.9 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 (-0.836 kcal/mol/HA) ✓ Good fit quality (FQ -7.98) ✓ Good H-bonds (5 bonds) ✓ Deep burial (73% SASA buried) ✓ Lipophilic contacts well-matched (84%) ✗ Extreme strain energy (42.9 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (9) ✗ Internal clashes (9)
Score
-24.239
kcal/mol
LE
-0.836
kcal/mol/HA
Fit Quality
-7.98
FQ (Leeson)
HAC
29
heavy atoms
MW
390
Da
LogP
1.06
cLogP
Strain ΔE
42.9 kcal/mol
SASA buried
73%
Lipo contact
84% BSA apolar/total
SASA unbound
748 Ų
Apolar buried
457 Ų

Interaction summary

HB 5 HY 22 PI 4 CLASH 4

HB · H-bonds

Mode: strict. Count shows atom-level H-bonds; unique residues in summary: 0.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

Final rank1.541Score-24.239
Inter norm-1.018Intra norm0.182
Top1000noExcludedno
Contacts17H-bonds5
Artifact reasongeometry warning; 9 clashes; 9 protein contact clashes; high strain Δ 42.9
Residues
ALA67 ARG277 ASN327 ASP332 ASP88 CYS328 GLU274 GLY235 GLY236 GLY237 GLY276 GLY393 HIS197 LYS69 SER200 TYR331 TYR389

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name1F3TContacts19
PoseOpen native poseHB0
IFP residues
ALA111 ALA67 ARG154 ARG277 ASP332 ASP88 CYS70 GLU274 GLY236 GLY237 GLY276 HIS197 LYS69 PHE238 PRO275 SER200 TYR278 TYR331 TYR389
Current overlap13Native recall0.68
Jaccard0.57RMSD-
HB strict2Strict recall0.22
HB same residue+role2HB role recall0.29
HB same residue2HB residue recall0.29

Protein summary

411 residues
Protein targetT13Atoms6340
Residues411Chains1
Residue summaryVAL:624; LEU:551; LYS:506; ARG:480; PHE:460; ILE:418; ASP:348; GLU:332; THR:322; TYR:315; PRO:308; ALA:290; SER:264; GLY:224; ASN:210; GLN:170

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
85 1.541129080493546 -1.01759 -24.2388 5 17 13 0.68 0.29 - no Current
127 1.9769756008820518 -0.839012 -25.8218 4 15 0 0.00 0.00 - no Open
112 2.0468554196280935 -0.950172 -25.4511 4 20 0 0.00 0.00 - no Open
68 2.6389209731256296 -0.849885 -27.3221 7 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 -24.239kcal/mol
Ligand efficiency (LE) -0.8358kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.979
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 389.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.06
Lipinski: ≤ 5
Rotatable bonds 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 42.91kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 60.32kcal/mol
Minimised FF energy 17.41kcal/mol

SASA & burial

✓ computed
SASA (unbound) 748.4Ų
Total solvent-accessible surface area of free ligand
BSA total 543.2Ų
Buried surface area upon binding
BSA apolar 457.3Ų
Hydrophobic contacts buried
BSA polar 86.0Ų
Polar contacts buried
Fraction buried 72.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 84.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2746.3Ų
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 3461.2Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1377.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)