FAIRMol

Z19656583

Pose ID 5246 Compound 1253 Pose 505

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 Z19656583
PDB6RX6

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Weak or marginal quality
Binding strong Geometry medium Native mixed SASA done
Strain ΔE
16.1 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.53, Jaccard 0.45, H-bond role recall 0.20
Burial
90%
Hydrophobic fit
82%
Reason: no major geometry red flags detected
3 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.083 kcal/mol/HA) ✓ Good fit quality (FQ -10.45) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (90% SASA buried) ✓ Lipophilic contacts well-matched (82%) ✗ Moderate strain (16.1 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (8) ✗ Internal clashes (8)
Score
-32.502
kcal/mol
LE
-1.083
kcal/mol/HA
Fit Quality
-10.45
FQ (Leeson)
HAC
30
heavy atoms
MW
418
Da
LogP
4.30
cLogP
Strain ΔE
16.1 kcal/mol
SASA buried
90%
Lipo contact
82% BSA apolar/total
SASA unbound
705 Ų
Apolar buried
521 Ų

Interaction summary

HB 6 HY 24 PI 2 CLASH 3

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 rank1.170Score-32.502
Inter norm-1.096Intra norm0.012
Top1000noExcludedno
Contacts13H-bonds6
Artifact reasongeometry warning; 8 clashes; 8 protein contact clashes
Residues
ARG14 ASP161 CYS168 LEU208 LEU209 LYS13 MET163 NAP301 PHE97 PRO210 TRP221 TYR174 VAL211

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 overlap10Native recall0.53
Jaccard0.45RMSD-
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
501 0.6818248824134601 -0.870183 -22.6709 2 17 0 0.00 0.00 - no Open
505 1.1696575870053978 -1.09557 -32.502 6 13 10 0.53 0.20 - no Current
515 1.9447900786079562 -0.856086 -20.8782 2 15 0 0.00 0.00 - no Open
526 2.18086980307911 -0.986616 -23.3532 3 18 0 0.00 0.00 - no Open
498 4.110887622816772 -1.00704 -25.3241 14 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 -32.502kcal/mol
Ligand efficiency (LE) -1.0834kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.451
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 417.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.30
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 16.11kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 90.97kcal/mol
Minimised FF energy 74.87kcal/mol

SASA & burial

✓ computed
SASA (unbound) 705.1Ų
Total solvent-accessible surface area of free ligand
BSA total 636.2Ų
Buried surface area upon binding
BSA apolar 520.6Ų
Hydrophobic contacts buried
BSA polar 115.7Ų
Polar contacts buried
Fraction buried 90.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 81.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1682.6Ų
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 943.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)