FAIRMol

Z26932322

Pose ID 5366 Compound 3071 Pose 625

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T08
T. brucei PTR1 T. brucei
Ligand Z26932322
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
Likely artefact or unreliable pose
Binding strong Geometry medium Native strong SASA done
Strain ΔE
36.5 kcal/mol
Protein clashes
2
Internal clashes
4
Native overlap
contact recall 0.74, Jaccard 0.56, H-bond role recall 0.20
Burial
86%
Hydrophobic fit
88%
Reason: no major geometry red flags detected
2 protein-contact clashes 4 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.865 kcal/mol/HA) ✓ Good fit quality (FQ -8.79) ✓ Deep burial (86% SASA buried) ✓ Lipophilic contacts well-matched (88%) ✗ Very high strain energy (36.5 kcal/mol) ✗ No H-bonds detected ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Many internal clashes (18)
Score
-31.147
kcal/mol
LE
-0.865
kcal/mol/HA
Fit Quality
-8.79
FQ (Leeson)
HAC
36
heavy atoms
MW
482
Da
LogP
4.11
cLogP
Final rank
1.3632
rank score
Inter norm
-0.926
normalised
Contacts
20
H-bonds 4
Strain ΔE
36.5 kcal/mol
SASA buried
86%
Lipo contact
88% BSA apolar/total
SASA unbound
799 Ų
Apolar buried
600 Ų

Interaction summary

HB 0 HY 12 PI 4 CLASH 4

HBD/HBA · H-bonds (geometric)

No hbd/hba · h-bonds (geometric) detected for this pose.

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 overlap14Native recall0.74
Jaccard0.56RMSD-
HB strict1Strict recall0.17
HB same residue+role1HB role recall0.20
HB same residue2HB residue recall0.40

Protein summary

258 residues
Protein targetT08Atoms3881
Residues258Chains2
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
625 1.363221456498722 -0.92576 -31.1474 4 20 14 0.74 0.20 - 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 -31.147kcal/mol
Ligand efficiency (LE) -0.8652kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.794
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 36HA

Physicochemical properties

Molecular weight 481.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.11
Lipinski: ≤ 5
Rotatable bonds 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 36.53kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 103.47kcal/mol
Minimised FF energy 66.94kcal/mol

SASA & burial

✓ computed
SASA (unbound) 798.6Ų
Total solvent-accessible surface area of free ligand
BSA total 683.1Ų
Buried surface area upon binding
BSA apolar 600.0Ų
Hydrophobic contacts buried
BSA polar 83.2Ų
Polar contacts buried
Fraction buried 85.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 87.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1815.8Ų
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 2051.9Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 941.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)