FAIRMol

KB_HAT_3

Pose ID 8191 Compound 3918 Pose 61

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_HAT_3
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
25.4 kcal/mol
Protein clashes
0
Internal clashes
10
Native overlap
contact recall 0.58, Jaccard 0.52, H-bond role recall 0.71
Burial
74%
Hydrophobic fit
66%
Reason: 10 internal clashes
10 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.611 kcal/mol/HA) ✓ Good fit quality (FQ -14.64) ✓ Strong H-bond network (10 bonds) ✓ Deep burial (74% SASA buried) ✓ Lipophilic contacts well-matched (66%) ✗ High strain energy (25.4 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-40.270
kcal/mol
LE
-1.611
kcal/mol/HA
Fit Quality
-14.64
FQ (Leeson)
HAC
25
heavy atoms
MW
349
Da
LogP
2.82
cLogP
Final rank
2.8165
rank score
Inter norm
-1.208
normalised
Contacts
13
H-bonds 14
Strain ΔE
25.4 kcal/mol
SASA buried
74%
Lipo contact
66% BSA apolar/total
SASA unbound
570 Ų
Apolar buried
276 Ų

Interaction summary

HBD 1 HBA 9 HY 0 PI 4 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

No hy · hydrophobic contacts detected for this pose.

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 overlap11Native recall0.58
Jaccard0.52RMSD-
HB strict7Strict recall0.78
HB same residue+role5HB role recall0.71
HB same residue5HB residue recall0.71

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
480 1.1779370265296099 -1.34243 -35.6626 8 17 0 0.00 0.00 - no Open
499 1.5926376860446014 -0.835843 -26.5148 10 8 0 0.00 0.00 - no Open
79 1.8700705262766413 -1.33218 -33.8612 8 16 0 0.00 0.00 - no Open
112 2.7308188656536694 -0.835416 -15.7613 9 8 0 0.00 0.00 - no Open
61 2.8164757275131813 -1.208 -40.2703 14 13 11 0.58 0.71 - no Current
69 3.834668592548584 -1.14556 -29.3213 11 17 0 0.00 0.00 - no Open
481 3.9191761234848834 -1.15042 -31.911 12 17 0 0.00 0.00 - no Open
500 4.3128468703548055 -1.19922 -39.0386 12 15 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 -40.270kcal/mol
Ligand efficiency (LE) -1.6108kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -14.644
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 25HA

Physicochemical properties

Molecular weight 349.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.82
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 25.38kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 68.62kcal/mol
Minimised FF energy 43.24kcal/mol

SASA & burial

✓ computed
SASA (unbound) 570.5Ų
Total solvent-accessible surface area of free ligand
BSA total 419.2Ų
Buried surface area upon binding
BSA apolar 275.7Ų
Hydrophobic contacts buried
BSA polar 143.5Ų
Polar contacts buried
Fraction buried 73.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 65.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2457.3Ų
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 1396.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)