FAIRMol

Z15584023

Pose ID 10688 Compound 2196 Pose 523

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 Z15584023
PDB6RB5

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
43.6 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.75, Jaccard 0.56
Burial
69%
Hydrophobic fit
78%
Reason: strain 43.6 kcal/mol
strain ΔE 43.6 kcal/mol 1 protein-contact clashes
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Cat. 1 — Very toxic (≤1 mg/L)
Daphnia EC₅₀
Cat. 1 — Very toxic (≤1 mg/L)
Algae IC₅₀
Cat. 1 — Very toxic (≤1 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
Yes
ADMET alerts (in-silico)
hERG High Ames Clear DILI Risk
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.670 kcal/mol/HA) ✓ Good fit quality (FQ -6.53) ✓ Deep burial (69% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ Extreme strain energy (43.6 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (13)
Score
-20.768
kcal/mol
LE
-0.670
kcal/mol/HA
Fit Quality
-6.53
FQ (Leeson)
HAC
31
heavy atoms
MW
462
Da
LogP
5.23
cLogP
Final rank
2.6571
rank score
Inter norm
-0.746
normalised
Contacts
13
H-bonds 2
Strain ΔE
43.6 kcal/mol
SASA buried
69%
Lipo contact
78% BSA apolar/total
SASA unbound
698 Ų
Apolar buried
378 Ų

Interaction summary

HBD 2 HY 9 PI 1 CLASH 1

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 2.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

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.
Name6RB5Contacts12
PoseOpen native poseHB0
IFP residues
ALA90 ARG74 GLY85 LEU73 LYS89 MET70 PHE83 PRO212 PRO213 SER86 SER87 VAL88
Current overlap9Native recall0.75
Jaccard0.56RMSD-
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
523 2.657087346169004 -0.746016 -20.7685 2 13 9 0.75 - - no Current
420 2.709827116277981 -0.918181 -28.2554 7 13 0 0.00 - - no Open
465 2.9022096103635304 -0.838033 -26.0762 4 20 0 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 -20.768kcal/mol
Ligand efficiency (LE) -0.6700kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.527
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 31HA

Physicochemical properties

Molecular weight 462.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.23
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 43.62kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 6.94kcal/mol
Minimised FF energy -36.67kcal/mol

SASA & burial

✓ computed
SASA (unbound) 697.6Ų
Total solvent-accessible surface area of free ligand
BSA total 483.9Ų
Buried surface area upon binding
BSA apolar 378.1Ų
Hydrophobic contacts buried
BSA polar 105.7Ų
Polar contacts buried
Fraction buried 69.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3135.8Ų
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 1497.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)