FAIRMol

ulfkktlib_1083

Pose ID 8253 Compound 2414 Pose 123

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 ulfkktlib_1083
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
Likely artefact or unreliable pose
Binding strong Geometry medium Native strong SASA done
Strain ΔE
41.1 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.74, Jaccard 0.54, H-bond role recall 0.57
Burial
79%
Hydrophobic fit
86%
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.832 kcal/mol/HA) ✓ Good fit quality (FQ -7.56) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (79% SASA buried) ✓ Lipophilic contacts well-matched (86%) ✗ Extreme strain energy (41.1 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-20.797
kcal/mol
LE
-0.832
kcal/mol/HA
Fit Quality
-7.56
FQ (Leeson)
HAC
25
heavy atoms
MW
336
Da
LogP
2.07
cLogP
Strain ΔE
41.1 kcal/mol
SASA buried
79%
Lipo contact
86% BSA apolar/total
SASA unbound
628 Ų
Apolar buried
429 Ų

Interaction summary

HB 9 HY 9 PI 4 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 rank2.478Score-20.797
Inter norm-1.226Intra norm0.394
Top1000noExcludedno
Contacts21H-bonds9
Artifact reasongeometry warning; 10 clashes; 1 protein clash; high strain Δ 41.1
Residues
ALA111 ALA67 ARG154 ARG277 ASP233 ASP88 GLU274 GLY199 GLY235 GLY236 GLY237 GLY276 HIS197 LYS69 PHE196 PRO113 PRO275 SER195 SER200 THR132 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
Jaccard0.54RMSD-
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
177 0.607719864180634 -1.1389 -23.8769 4 16 0 0.00 0.00 - no Open
123 2.4775018501120596 -1.22574 -20.7967 9 21 14 0.74 0.57 - no Current
222 3.1105805910022073 -0.783041 -9.61469 5 12 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 -20.797kcal/mol
Ligand efficiency (LE) -0.8319kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.562
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 25HA

Physicochemical properties

Molecular weight 336.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.07
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 41.13kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 44.91kcal/mol
Minimised FF energy 3.78kcal/mol

SASA & burial

✓ computed
SASA (unbound) 627.9Ų
Total solvent-accessible surface area of free ligand
BSA total 496.8Ų
Buried surface area upon binding
BSA apolar 428.9Ų
Hydrophobic contacts buried
BSA polar 67.9Ų
Polar contacts buried
Fraction buried 79.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 86.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2610.3Ų
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 1405.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)