FAIRMol

Z49643066

Pose ID 11399 Compound 942 Pose 556

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T17
T. brucei TR (Doorstop site) T. brucei Doorstop site
Ligand Z49643066
PDB5S9T

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
59.3 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.83, Jaccard 0.48, H-bond role recall 1.00
Burial
81%
Hydrophobic fit
80%
Reason: strain 59.3 kcal/mol
strain ΔE 59.3 kcal/mol 3 protein-contact clashes 3 intramolecular 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 (-0.520 kcal/mol/HA) ✓ Good fit quality (FQ -5.46) ✓ Deep burial (81% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ Extreme strain energy (59.3 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (18)
Score
-21.321
kcal/mol
LE
-0.520
kcal/mol/HA
Fit Quality
-5.46
FQ (Leeson)
HAC
41
heavy atoms
MW
594
Da
LogP
5.31
cLogP
Final rank
3.3406
rank score
Inter norm
-0.597
normalised
Contacts
19
H-bonds 4
Strain ΔE
59.3 kcal/mol
SASA buried
81%
Lipo contact
80% BSA apolar/total
SASA unbound
898 Ų
Apolar buried
584 Ų

Interaction summary

HBD 1 HY 8 PI 4 CLASH 3

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 1.

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.
Name5S9TContacts12
PoseOpen native poseHB0
IFP residues
ALA365 ARG228 ARG331 GLY229 LEU332 LEU334 MET333 PHE198 PHE230 SER364 THR374 VAL366
Current overlap10Native recall0.83
Jaccard0.48RMSD-
HB strict1Strict recall1.00
HB same residue+role1HB role recall1.00
HB same residue1HB residue recall1.00

Protein summary

1033 residues
Protein targetT17Atoms15160
Residues1033Chains2
Residue summaryVAL:1536; LEU:1387; LYS:1386; ILE:1064; GLU:900; THR:868; ARG:816; PHE:800; ALA:780; ASN:700; PRO:686; GLY:672; SER:616; TYR:588; ASP:528; MET:408

Receptor context

2 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 2 Excluded HETATM 0
Kept cofactors / ions
A:FAD501 B:FAD501

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
557 2.4874861206743537 -0.648148 -20.6373 4 18 0 0.00 0.00 - no Open
524 3.2596614552604413 -0.532423 -19.7552 5 10 0 0.00 0.00 - no Open
556 3.340626388392719 -0.596833 -21.321 4 19 10 0.83 1.00 - no Current
575 3.7317739710158384 -0.642522 -21.6137 5 16 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 -21.321kcal/mol
Ligand efficiency (LE) -0.5200kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.464
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 41HA

Physicochemical properties

Molecular weight 593.7Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.31
Lipinski: ≤ 5
Rotatable bonds 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 59.31kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 83.83kcal/mol
Minimised FF energy 24.52kcal/mol

SASA & burial

✓ computed
SASA (unbound) 897.6Ų
Total solvent-accessible surface area of free ligand
BSA total 729.1Ų
Buried surface area upon binding
BSA apolar 584.2Ų
Hydrophobic contacts buried
BSA polar 144.9Ų
Polar contacts buried
Fraction buried 81.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 80.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6726.8Ų
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 8063.1Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 2058.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)