FAIRMol

Z44866976

Pose ID 8781 Compound 940 Pose 651

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 Z44866976
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
55.2 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.68, Jaccard 0.54, H-bond role recall 0.57
Burial
74%
Hydrophobic fit
66%
Reason: strain 55.2 kcal/mol
strain ΔE 55.2 kcal/mol 2 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.848 kcal/mol/HA) ✓ Good fit quality (FQ -8.27) ✓ Strong H-bond network (12 bonds) ✓ Deep burial (74% SASA buried) ✓ Lipophilic contacts well-matched (66%) ✗ Extreme strain energy (55.2 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (11)
Score
-26.299
kcal/mol
LE
-0.848
kcal/mol/HA
Fit Quality
-8.27
FQ (Leeson)
HAC
31
heavy atoms
MW
449
Da
LogP
1.75
cLogP
Strain ΔE
55.2 kcal/mol
SASA buried
74%
Lipo contact
66% BSA apolar/total
SASA unbound
692 Ų
Apolar buried
333 Ų

Interaction summary

HB 12 HY 6 PI 3 CLASH 2

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 rank4.772Score-26.299
Inter norm-1.019Intra norm0.171
Top1000noExcludedno
Contacts18H-bonds12
Artifact reasongeometry warning; 11 clashes; 3 protein clashes; high strain Δ 55.2
Residues
ALA111 ALA67 ALA90 ARG154 ARG277 ASN112 GLU274 GLY199 GLY236 GLY237 GLY276 HIS197 LYS69 PHE170 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 overlap13Native recall0.68
Jaccard0.54RMSD-
HB strict4Strict recall0.44
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
633 0.05829920103739172 -1.0551 -30.9043 6 13 0 0.00 0.00 - no Open
651 1.4156605545140337 -1.40297 -43.3583 15 18 0 0.00 0.00 - no Open
631 2.4700797108431822 -0.817046 -22.4274 2 16 0 0.00 0.00 - no Open
651 2.6241796803607684 -0.861067 -23.541 5 15 0 0.00 0.00 - no Open
641 2.867756166472061 -0.918058 -26.7937 7 12 0 0.00 0.00 - no Open
637 3.275743878737262 -0.87096 -22.8257 9 13 0 0.00 0.00 - no Open
650 3.2986306516203525 -1.05149 -29.1371 15 12 0 0.00 0.00 - no Open
628 4.031122152407257 -0.781668 -24.4719 5 16 0 0.00 0.00 - no Open
645 4.500872485938668 -0.819792 -23.1151 6 16 0 0.00 0.00 - no Open
651 4.7722691848813374 -1.01921 -26.299 12 18 13 0.68 0.57 - no Current
640 4.779003355861554 -1.06227 -31.24 16 18 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 -26.299kcal/mol
Ligand efficiency (LE) -0.8484kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.265
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 31HA

Physicochemical properties

Molecular weight 449.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.75
Lipinski: ≤ 5
Rotatable bonds 10

Conformational strain (MMFF94s)

Strain energy (ΔE) 55.22kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 85.71kcal/mol
Minimised FF energy 30.50kcal/mol

SASA & burial

✓ computed
SASA (unbound) 692.4Ų
Total solvent-accessible surface area of free ligand
BSA total 509.0Ų
Buried surface area upon binding
BSA apolar 333.2Ų
Hydrophobic contacts buried
BSA polar 175.8Ų
Polar contacts buried
Fraction buried 73.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 65.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2562.9Ų
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 1377.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)