FAIRMol

KB_Leish_41

Pose ID 8216 Compound 965 Pose 86

DB fairmolDocking 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_41
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
45.1 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.63, Jaccard 0.50, H-bond role recall 0.57
Burial
80%
Hydrophobic fit
84%
Reason: strain 45.1 kcal/mol
strain ΔE 45.1 kcal/mol 3 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.867 kcal/mol/HA) ✓ Good fit quality (FQ -8.52) ✓ Strong H-bond network (11 bonds) ✓ Deep burial (80% SASA buried) ✓ Lipophilic contacts well-matched (84%) ✗ Extreme strain energy (45.1 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (12)
Score
-27.727
kcal/mol
LE
-0.867
kcal/mol/HA
Fit Quality
-8.52
FQ (Leeson)
HAC
32
heavy atoms
MW
431
Da
LogP
2.24
cLogP
Strain ΔE
45.1 kcal/mol
SASA buried
80%
Lipo contact
84% BSA apolar/total
SASA unbound
712 Ų
Apolar buried
475 Ų

Interaction summary

HB 11 HY 3 PI 4 CLASH 3

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 rank2.961Score-27.727
Inter norm-0.943Intra norm0.077
Top1000noExcludedno
Contacts17H-bonds11
Artifact reasongeometry warning; 12 clashes; 1 protein clash; high strain Δ 45.1
Residues
ALA67 ARG154 ARG277 ASP332 GLU274 GLY199 GLY201 GLY235 GLY236 GLY237 GLY276 HIS197 HIS333 LYS69 PHE170 SER200 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 overlap12Native recall0.63
Jaccard0.50RMSD-
HB strict5Strict recall0.56
HB same residue+role4HB role recall0.57
HB same residue4HB residue recall0.57

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
139 1.2707803272356184 -0.964933 -23.9292 7 20 0 0.00 0.00 - no Open
118 1.8600146926244991 -0.766088 -21.812 5 21 0 0.00 0.00 - no Open
147 2.7976310824915145 -0.856981 -30.3537 6 18 0 0.00 0.00 - no Open
86 2.9609798228307374 -0.943381 -27.7271 11 17 12 0.63 0.57 - no Current
152 3.122800112303765 -0.633174 -16.016 7 9 0 0.00 0.00 - no Open
130 3.4110680238423696 -0.767516 -23.2371 4 22 0 0.00 0.00 - no Open
118 4.339783269061754 -0.842022 -25.106 5 19 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 -27.727kcal/mol
Ligand efficiency (LE) -0.8665kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.521
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 32HA

Physicochemical properties

Molecular weight 430.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.24
Lipinski: ≤ 5
Rotatable bonds 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 45.10kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 95.86kcal/mol
Minimised FF energy 50.75kcal/mol

SASA & burial

✓ computed
SASA (unbound) 712.3Ų
Total solvent-accessible surface area of free ligand
BSA total 567.6Ų
Buried surface area upon binding
BSA apolar 475.2Ų
Hydrophobic contacts buried
BSA polar 92.4Ų
Polar contacts buried
Fraction buried 79.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 83.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2648.0Ų
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 1415.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)