FAIRMol

Z26033641

Pose ID 5234 Compound 2746 Pose 493

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 Z26033641
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
47.1 kcal/mol
Protein clashes
2
Internal clashes
13
Native overlap
contact recall 0.79, Jaccard 0.75, H-bond role recall 0.80
Burial
90%
Hydrophobic fit
67%
Reason: 13 internal clashes, strain 47.1 kcal/mol
strain ΔE 47.1 kcal/mol 2 protein-contact clashes 13 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-1.380 kcal/mol/HA) ✓ Good fit quality (FQ -12.18) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (90% SASA buried) ✓ Lipophilic contacts well-matched (67%) ✗ Extreme strain energy (47.1 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Many internal clashes (13)
Score
-31.743
kcal/mol
LE
-1.380
kcal/mol/HA
Fit Quality
-12.18
FQ (Leeson)
HAC
23
heavy atoms
MW
336
Da
LogP
1.60
cLogP
Strain ΔE
47.1 kcal/mol
SASA buried
90%
Lipo contact
67% BSA apolar/total
SASA unbound
530 Ų
Apolar buried
319 Ų

Interaction summary

HB 6 HY 22 PI 3 CLASH 0

HB · H-bonds

Mode: strict. Count shows atom-level H-bonds; unique residues in summary: 0.

PI · π–π interactions

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

HY · Hydrophobic contacts

CLASH · Clashes

No clash · clashes detected for this pose.
Final rank0.519Score-31.743
Inter norm-1.384Intra norm0.004
Top1000noExcludedno
Contacts16H-bonds6
Artifact reasongeometry warning; 13 clashes; 2 protein contact clashes; 1 severe cofactor-context clash; high strain Δ 47.1
Residues
ALA96 ARG14 ASP161 GLY205 LEU208 LEU209 MET213 NAP301 PHE171 PHE97 PRO210 SER207 SER95 TRP221 TYR174 VAL206

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
Jaccard0.75RMSD-
HB strict5Strict recall0.83
HB same residue+role4HB role recall0.80
HB same residue4HB residue recall0.80

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
468 0.45721639471781794 -1.46724 -33.4317 6 16 15 0.79 0.80 - no Open
493 0.518580635414387 -1.38415 -31.7432 6 16 15 0.79 0.80 - 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 -31.743kcal/mol
Ligand efficiency (LE) -1.3801kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -12.181
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 23HA

Physicochemical properties

Molecular weight 336.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.60
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 47.06kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -50.47kcal/mol
Minimised FF energy -97.53kcal/mol

SASA & burial

✓ computed
SASA (unbound) 529.7Ų
Total solvent-accessible surface area of free ligand
BSA total 476.2Ų
Buried surface area upon binding
BSA apolar 319.0Ų
Hydrophobic contacts buried
BSA polar 157.2Ų
Polar contacts buried
Fraction buried 89.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 67.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1493.8Ų
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 904.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)