FAIRMol

ulfkktlib_1541

Pose ID 10476 Compound 4644 Pose 311

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T16
T. brucei TR (Dimer interface (site 2)) T. brucei Dimer interface (site 2)
Ligand ulfkktlib_1541
PDB6RB5

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Weak or marginal quality
Binding strong Geometry medium Native strong SASA done
Strain ΔE
23.7 kcal/mol
Protein clashes
4
Internal clashes
4
Native overlap
contact recall 0.67, Jaccard 0.47
Burial
72%
Hydrophobic fit
97%
Reason: no major geometry red flags detected
4 protein-contact clashes 4 intramolecular clashes
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Cat. 3 — Harmful (10–100 mg/L)
Daphnia EC₅₀
Cat. 3 — Harmful (10–100 mg/L)
Algae IC₅₀
Cat. 3 — Harmful (10–100 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
No
ADMET alerts (in-silico)
hERG Medium Ames Clear DILI Low
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.983 kcal/mol/HA) ✓ Good fit quality (FQ -8.94) ✓ Good H-bonds (3 bonds) ✓ Deep burial (72% SASA buried) ✓ Lipophilic contacts well-matched (97%) ✗ High strain energy (23.7 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-24.575
kcal/mol
LE
-0.983
kcal/mol/HA
Fit Quality
-8.94
FQ (Leeson)
HAC
25
heavy atoms
MW
329
Da
LogP
3.29
cLogP
Final rank
3.4867
rank score
Inter norm
-0.913
normalised
Contacts
13
H-bonds 3
Strain ΔE
23.7 kcal/mol
SASA buried
72%
Lipo contact
97% BSA apolar/total
SASA unbound
597 Ų
Apolar buried
420 Ų

Interaction summary

HBD 3 HY 6 PI 0 CLASH 4

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: permissive. Residues: 3.

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: permissive.
Name6RB5Contacts12
PoseOpen native poseHB0
IFP residues
ALA90 ARG74 GLY85 LEU73 LYS89 MET70 PHE83 PRO212 PRO213 SER86 SER87 VAL88
Current overlap8Native recall0.67
Jaccard0.47RMSD-
HB strict0Strict recall-
HB same residue+role0HB role recall-
HB same residue0HB residue recall-

Protein summary

493 residues
Protein targetT16Atoms7551
Residues493Chains1
Residue summaryVAL:768; LYS:704; LEU:703; ILE:532; GLU:450; THR:434; ARG:408; PHE:400; ALA:390; ASN:350; PRO:350; GLY:336; SER:319; TYR:294; ASP:276; MET:221

Receptor context

1 kept / 0 excluded
Receptor context filtering: interactions and SASA are computed against protein atoms plus allowed cofactors/ions. Native ligand-like HETATM partners are excluded from scoring.
Kept context 1 Excluded HETATM 0
Kept cofactors / ions
A:FAD501

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
187 0.3651513339867014 -1.33797 -34.7509 4 21 0 0.00 - - no Open
311 3.486688183343587 -0.912667 -24.5752 3 13 8 0.67 - - 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 -24.575kcal/mol
Ligand efficiency (LE) -0.9830kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.936
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 25HA

Physicochemical properties

Molecular weight 329.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.29
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 23.68kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 71.04kcal/mol
Minimised FF energy 47.36kcal/mol

SASA & burial

✓ computed
SASA (unbound) 596.8Ų
Total solvent-accessible surface area of free ligand
BSA total 431.2Ų
Buried surface area upon binding
BSA apolar 419.8Ų
Hydrophobic contacts buried
BSA polar 11.4Ų
Polar contacts buried
Fraction buried 72.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 97.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3189.6Ų
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 4076.6Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1468.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)