FAIRMol

Z2569867923

Pose ID 4583 Compound 2925 Pose 520

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T07
T. brucei PTR1 T. brucei
Ligand Z2569867923
PDB6RX6

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
40.6 kcal/mol
Protein clashes
6
Internal clashes
7
Native overlap
contact recall 0.79, Jaccard 0.62, H-bond role recall 0.80
Burial
91%
Hydrophobic fit
80%
Reason: 7 internal clashes
6 protein-contact clashes 7 intramolecular clashes
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Not classified (>100 mg/L)
Daphnia EC₅₀
Not classified (>100 mg/L)
Algae IC₅₀
Not classified (>100 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
No
ADMET alerts (in-silico)
hERG Low Ames Clear DILI Low
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.858 kcal/mol/HA) ✓ Good fit quality (FQ -8.44) ✓ Good H-bonds (5 bonds) ✓ Deep burial (91% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ Extreme strain energy (40.6 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-27.468
kcal/mol
LE
-0.858
kcal/mol/HA
Fit Quality
-8.44
FQ (Leeson)
HAC
32
heavy atoms
MW
444
Da
LogP
-0.14
cLogP
Final rank
2.8110
rank score
Inter norm
-1.001
normalised
Contacts
20
H-bonds 14
Strain ΔE
40.6 kcal/mol
SASA buried
91%
Lipo contact
80% BSA apolar/total
SASA unbound
742 Ų
Apolar buried
538 Ų

Interaction summary

HBD 4 HBA 1 HY 8 PI 2 CLASH 7

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 4.

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.
NameTbPTR1_cW_6RX6_ReadyContacts19
PoseOpen native poseHB0
IFP residues
ARG14 ASP161 CYS168 GLY205 LEU208 LEU209 LYS178 MET213 NAP301 PHE171 PHE97 PRO210 PRO99 SER207 SER95 TRP221 TYR174 TYR98 VAL206
Current overlap15Native recall0.79
Jaccard0.62RMSD-
HB strict3Strict recall0.50
HB same residue+role4HB role recall0.80
HB same residue4HB residue recall0.80

Protein summary

275 residues
Protein targetT07Atoms3932
Residues275Chains3
Residue summaryLEU:437; VAL:433; ALA:361; ARG:288; ILE:266; GLU:210; LYS:198; SER:198; ASN:182; THR:154; GLN:153; PHE:140; PRO:140; TYR:126; GLY:112; HIS:103

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:NAP301

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
520 2.811027298071808 -1.00138 -27.4677 14 20 15 0.79 0.80 - no Current
546 5.387625329526339 -0.624074 -18.7578 12 12 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 -27.468kcal/mol
Ligand efficiency (LE) -0.8584kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.441
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 32HA

Physicochemical properties

Molecular weight 444.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) -0.14
Lipinski: ≤ 5
Rotatable bonds 16

Conformational strain (MMFF94s)

Strain energy (ΔE) 40.61kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 224.58kcal/mol
Minimised FF energy 183.97kcal/mol

SASA & burial

✓ computed
SASA (unbound) 741.5Ų
Total solvent-accessible surface area of free ligand
BSA total 676.7Ų
Buried surface area upon binding
BSA apolar 537.8Ų
Hydrophobic contacts buried
BSA polar 139.0Ų
Polar contacts buried
Fraction buried 91.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 79.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1736.9Ų
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 2051.9Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 908.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)