FAIRMol

ulfkktlib_1033

Pose ID 6217 Compound 3550 Pose 121

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T10
L. infantum R5P L. infantum
Ligand ulfkktlib_1033

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
30.0 kcal/mol
Protein clashes
6
Internal clashes
6
Native overlap
contact recall 0.76, Jaccard 0.72, H-bond role recall 0.36
Burial
66%
Hydrophobic fit
81%
Reason: 6 internal clashes
6 protein-contact clashes 6 intramolecular clashes 89% of hydrophobic surface is solvent-exposed (17/19 atoms). Large non-polar area without protein contacts incurs a desolvation penalty and will reduce binding affinity. Consider truncating or replacing the exposed fragment.
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Not classified (>100 mg/L)
Daphnia EC₅₀
Not classified (>100 mg/L)
Algae IC₅₀
Cat. 3 — Harmful (10–100 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
No
ADMET alerts (in-silico)
hERG Low Ames Clear DILI Low
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.747 kcal/mol/HA) ✓ Good fit quality (FQ -7.13) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (66% SASA buried) ✓ Lipophilic contacts well-matched (81%) ✗ Very high strain energy (30.0 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (8)
Score
-21.674
kcal/mol
LE
-0.747
kcal/mol/HA
Fit Quality
-7.13
FQ (Leeson)
HAC
29
heavy atoms
MW
427
Da
LogP
2.30
cLogP
Final rank
4.6448
rank score
Inter norm
-0.852
normalised
Contacts
14
H-bonds 16
Strain ΔE
30.0 kcal/mol
SASA buried
66%
Lipo contact
81% BSA apolar/total
SASA unbound
650 Ų
Apolar buried
348 Ų

Interaction summary

HBA 9 HY 2 PI 0 CLASH 6

HBD/HBA · H-bonds (geometric)

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

PI · π–π interactions

No pi · π–π interactions detected for this pose.

HY · Hydrophobic contacts

CLASH · Clashes

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name6FXWContacts17
PoseOpen native poseHB0
IFP residues
ALA15 ARG116 ARG140 ARG144 ASN106 ASP13 CYS72 GLY73 GLY75 GLY77 HIS105 HIS14 HIS141 ILE76 LEU101 THR74 TYR49
Current overlap13Native recall0.76
Jaccard0.72RMSD-
HB strict6Strict recall0.46
HB same residue+role4HB role recall0.36
HB same residue4HB residue recall0.36

Protein summary

155 residues
Protein targetT10Atoms4590
Residues155Chains1
Residue summaryILE:494; ARG:384; ALA:360; VAL:352; LEU:304; GLU:300; THR:280; MET:272; LYS:220; ASP:216; TYR:210; HIS:204; GLY:182; SER:176; GLN:170; ASN:140

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
121 3.731256011849603 -1.06907 -28.7125 15 15 0 0.00 0.00 - no Open
121 4.64480359171593 -0.851718 -21.6745 16 14 13 0.76 0.36 - 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 -21.674kcal/mol
Ligand efficiency (LE) -0.7474kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.134
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 426.9Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.30
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 30.03kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 132.51kcal/mol
Minimised FF energy 102.48kcal/mol

SASA & burial

✓ computed
SASA (unbound) 650.4Ų
Total solvent-accessible surface area of free ligand
BSA total 429.9Ų
Buried surface area upon binding
BSA apolar 348.4Ų
Hydrophobic contacts buried
BSA polar 81.5Ų
Polar contacts buried
Fraction buried 66.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 81.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2263.3Ų
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 2417.4Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 718.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)