FAIRMol

Z49613256

Pose ID 4660 Compound 2058 Pose 597

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 Z49613256
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
43.6 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.63, Jaccard 0.52, H-bond role recall 0.40
Burial
98%
Hydrophobic fit
74%
Reason: strain 43.6 kcal/mol
strain ΔE 43.6 kcal/mol 2 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-1.354 kcal/mol/HA) ✓ Good fit quality (FQ -12.13) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (98% SASA buried) ✓ Lipophilic contacts well-matched (74%) ✗ Extreme strain energy (43.6 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Internal clashes (9)
Score
-32.490
kcal/mol
LE
-1.354
kcal/mol/HA
Fit Quality
-12.13
FQ (Leeson)
HAC
24
heavy atoms
MW
326
Da
LogP
1.54
cLogP
Strain ΔE
43.6 kcal/mol
SASA buried
98%
Lipo contact
74% BSA apolar/total
SASA unbound
568 Ų
Apolar buried
411 Ų

Interaction summary

HB 6 HY 24 PI 2 CLASH 2

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

Final rank0.068Score-32.490
Inter norm-1.371Intra norm0.017
Top1000noExcludedno
Contacts16H-bonds6
Artifact reasongeometry warning; 9 clashes; 2 protein contact clashes; 1 severe cofactor-context clash; high strain Δ 43.6
Residues
ARG14 ASN175 ASP161 CYS168 LEU208 LEU209 MET163 NAP301 PHE171 PHE97 PRO167 PRO210 TRP221 TYR174 VAL164 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 overlap12Native recall0.63
Jaccard0.52RMSD-
HB strict3Strict recall0.50
HB same residue+role2HB role recall0.40
HB same residue2HB residue recall0.40

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
597 0.067938204709174 -1.37122 -32.4902 6 16 12 0.63 0.40 - no Current
622 1.1959443571032502 -1.0687 -29.4649 13 16 0 0.00 0.00 - no Open
592 1.5173985335030495 -1.19629 -37.5817 10 13 0 0.00 0.00 - no Open
606 2.321576433442885 -1.38185 -36.0151 11 17 0 0.00 0.00 - no Open
610 2.649542773492627 -1.04458 -32.3454 14 15 0 0.00 0.00 - no Open
621 3.945865475066838 -1.05056 -15.0057 11 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 -32.490kcal/mol
Ligand efficiency (LE) -1.3538kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -12.132
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 24HA

Physicochemical properties

Molecular weight 326.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.54
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 43.60kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 196.72kcal/mol
Minimised FF energy 153.12kcal/mol

SASA & burial

✓ computed
SASA (unbound) 568.0Ų
Total solvent-accessible surface area of free ligand
BSA total 558.2Ų
Buried surface area upon binding
BSA apolar 410.9Ų
Hydrophobic contacts buried
BSA polar 147.4Ų
Polar contacts buried
Fraction buried 98.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 73.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1547.8Ų
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 918.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)