FAIRMol

KB_chagas_58

Pose ID 8233 Compound 1836 Pose 103

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_chagas_58
PDB1F3T

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
22.4 kcal/mol
Protein clashes
0
Internal clashes
9
Native overlap
contact recall 0.74, Jaccard 0.61, H-bond role recall 0.29
Burial
82%
Hydrophobic fit
89%
Reason: 9 internal clashes
9 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.002 kcal/mol/HA) ✓ Good fit quality (FQ -9.35) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (82% SASA buried) ✓ Lipophilic contacts well-matched (89%) ✗ High strain energy (22.4 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)
Score
-27.054
kcal/mol
LE
-1.002
kcal/mol/HA
Fit Quality
-9.35
FQ (Leeson)
HAC
27
heavy atoms
MW
380
Da
LogP
3.39
cLogP
Strain ΔE
22.4 kcal/mol
SASA buried
82%
Lipo contact
89% BSA apolar/total
SASA unbound
570 Ų
Apolar buried
415 Ų

Interaction summary

HB 8 HY 7 PI 3 CLASH 0

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

No clash · clashes detected for this pose.
Final rank2.960Score-27.054
Inter norm-1.139Intra norm0.137
Top1000noExcludedno
Contacts18H-bonds8
Artifact reasongeometry warning; 9 clashes; 2 protein clashes; moderate strain Δ 22.4
Residues
ALA111 ALA67 ALA90 ARG154 ARG277 ASN112 ASP88 GLU274 GLY235 GLY236 GLY237 GLY276 HIS197 LYS69 PRO113 PRO275 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 overlap14Native recall0.74
Jaccard0.61RMSD-
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
78 1.6692729710025795 -0.950213 -21.4805 3 14 0 0.00 0.00 - no Open
103 2.960386822804398 -1.13922 -27.0542 8 18 14 0.74 0.29 - no Current

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -27.054kcal/mol
Ligand efficiency (LE) -1.0020kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.348
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 380.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.39
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 22.37kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 45.44kcal/mol
Minimised FF energy 23.07kcal/mol

SASA & burial

✓ computed
SASA (unbound) 570.1Ų
Total solvent-accessible surface area of free ligand
BSA total 466.7Ų
Buried surface area upon binding
BSA apolar 415.5Ų
Hydrophobic contacts buried
BSA polar 51.2Ų
Polar contacts buried
Fraction buried 81.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 89.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2551.2Ų
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 1428.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)