FAIRMol

Z25492290

Pose ID 5166 Compound 3035 Pose 425

DB SELECTIONDocking 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 Z25492290
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
30.6 kcal/mol
Protein clashes
4
Internal clashes
7
Native overlap
contact recall 0.68, Jaccard 0.57, H-bond role recall 0.20
Burial
90%
Hydrophobic fit
76%
Reason: 7 internal clashes
4 protein-contact clashes 7 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-1.080 kcal/mol/HA) ✓ Good fit quality (FQ -10.52) ✓ Good H-bonds (4 bonds) ✓ Deep burial (90% SASA buried) ✓ Lipophilic contacts well-matched (76%) ✗ Very high strain energy (30.6 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (6) ✗ Many internal clashes (10)
Score
-33.475
kcal/mol
LE
-1.080
kcal/mol/HA
Fit Quality
-10.52
FQ (Leeson)
HAC
31
heavy atoms
MW
456
Da
LogP
3.55
cLogP
Strain ΔE
30.6 kcal/mol
SASA buried
90%
Lipo contact
76% BSA apolar/total
SASA unbound
713 Ų
Apolar buried
488 Ų

Interaction summary

HB 4 HY 24 PI 2 CLASH 7
Final rank0.955Score-33.475
Inter norm-1.067Intra norm-0.014
Top1000noExcludedno
Contacts17H-bonds4
Artifact reasongeometry warning; 10 clashes; 6 protein contact clashes; 3 cofactor-context clashes; high strain Δ 30.5
Residues
ARG14 ASP161 CYS168 GLY205 LEU208 LEU209 LEU263 LYS13 MET163 MET213 NAP301 PHE97 PRO210 TRP221 TYR174 VAL206 VAL211

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

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 overlap13Native recall0.68
Jaccard0.57RMSD-
HB strict1Strict recall0.17
HB same residue+role1HB role recall0.20
HB same residue2HB residue recall0.40

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
425 0.9551242018102782 -1.06722 -33.4755 4 17 13 0.68 0.20 - no Current
516 1.2768242680188926 -0.846457 -25.3115 3 18 0 0.00 0.00 - no Open
434 2.462248084836765 -0.70609 -19.2858 5 13 0 0.00 0.00 - no Open
402 2.8628267461029133 -0.765245 -24.5292 12 17 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 -33.475kcal/mol
Ligand efficiency (LE) -1.0799kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.520
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 31HA

Physicochemical properties

Molecular weight 455.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.55
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 30.58kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 56.29kcal/mol
Minimised FF energy 25.71kcal/mol

SASA & burial

✓ computed
SASA (unbound) 712.6Ų
Total solvent-accessible surface area of free ligand
BSA total 642.4Ų
Buried surface area upon binding
BSA apolar 488.4Ų
Hydrophobic contacts buried
BSA polar 154.0Ų
Polar contacts buried
Fraction buried 90.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 76.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1682.2Ų
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 925.6Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)