FAIRMol

ulfkktlib_3642

Pose ID 8272 Compound 1675 Pose 142

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 ulfkktlib_3642
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
28.6 kcal/mol
Protein clashes
0
Internal clashes
6
Native overlap
contact recall 0.63, Jaccard 0.57, H-bond role recall 0.57
Burial
75%
Hydrophobic fit
82%
Reason: 6 internal clashes
6 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.409 kcal/mol/HA) ✓ Good fit quality (FQ -11.29) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (75% SASA buried) ✓ Lipophilic contacts well-matched (82%) ✗ High strain energy (28.6 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (6)
Score
-25.358
kcal/mol
LE
-1.409
kcal/mol/HA
Fit Quality
-11.29
FQ (Leeson)
HAC
18
heavy atoms
MW
246
Da
LogP
0.55
cLogP
Final rank
1.2233
rank score
Inter norm
-1.626
normalised
Contacts
14
H-bonds 10
Strain ΔE
28.6 kcal/mol
SASA buried
75%
Lipo contact
82% BSA apolar/total
SASA unbound
477 Ų
Apolar buried
291 Ų

Interaction summary

HBD 4 HBA 3 HY 2 PI 2 CLASH 0

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 5.

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.

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
Jaccard0.57RMSD-
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
124 0.3716977135685291 -1.66661 -26.2542 10 15 14 0.74 0.71 - no Open
109 0.5034750450535502 -1.32956 -13.6864 6 13 0 0.00 0.00 - no Open
142 1.2233307113629792 -1.62611 -25.3582 10 14 12 0.63 0.57 - no Current
143 2.399188471391933 -1.65514 -25.465 10 14 13 0.68 0.57 - 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 -25.358kcal/mol
Ligand efficiency (LE) -1.4088kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -11.290
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 18HA

Physicochemical properties

Molecular weight 246.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 0.55
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 28.62kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 46.58kcal/mol
Minimised FF energy 17.96kcal/mol

SASA & burial

✓ computed
SASA (unbound) 476.8Ų
Total solvent-accessible surface area of free ligand
BSA total 355.9Ų
Buried surface area upon binding
BSA apolar 291.3Ų
Hydrophobic contacts buried
BSA polar 64.6Ų
Polar contacts buried
Fraction buried 74.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 81.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2465.5Ų
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 1407.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)