FAIRMol

Z56920485

Pose ID 4657 Compound 2796 Pose 594

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 Z56920485
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 strong SASA done
Strain ΔE
39.2 kcal/mol
Protein clashes
2
Internal clashes
3
Native overlap
contact recall 0.89, Jaccard 0.89, H-bond role recall 0.60
Burial
85%
Hydrophobic fit
74%
Reason: no major geometry red flags detected
2 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.433 kcal/mol/HA) ✓ Good fit quality (FQ -12.85) ✓ Strong H-bond network (10 bonds) ✓ Deep burial (85% SASA buried) ✓ Lipophilic contacts well-matched (74%) ✗ Very high strain energy (39.2 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (7)
Score
-34.400
kcal/mol
LE
-1.433
kcal/mol/HA
Fit Quality
-12.85
FQ (Leeson)
HAC
24
heavy atoms
MW
348
Da
LogP
1.17
cLogP
Strain ΔE
39.2 kcal/mol
SASA buried
85%
Lipo contact
74% BSA apolar/total
SASA unbound
585 Ų
Apolar buried
366 Ų

Interaction summary

HB 10 HY 24 PI 3 CLASH 3
Final rank0.909Score-34.400
Inter norm-1.545Intra norm0.112
Top1000noExcludedno
Contacts17H-bonds10
Artifact reasongeometry warning; 7 clashes; 1 protein clash; 1 severe cofactor-context clash; high strain Δ 39.2
Residues
ARG14 ASP161 LEU208 LEU209 LYS178 MET213 NAP301 PHE171 PHE97 PRO210 PRO99 SER207 SER95 TRP221 TYR174 TYR98 VAL206

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

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 overlap17Native recall0.89
Jaccard0.89RMSD-
HB strict4Strict recall0.67
HB same residue+role3HB role recall0.60
HB same residue3HB residue recall0.60

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
590 0.7120223301017444 -1.45057 -32.6681 11 17 17 0.89 0.60 - no Open
594 0.908859298772404 -1.54524 -34.4 10 17 17 0.89 0.60 - 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 -34.400kcal/mol
Ligand efficiency (LE) -1.4333kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -12.845
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 24HA

Physicochemical properties

Molecular weight 348.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.17
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 39.19kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 90.64kcal/mol
Minimised FF energy 51.45kcal/mol

SASA & burial

✓ computed
SASA (unbound) 584.7Ų
Total solvent-accessible surface area of free ligand
BSA total 495.7Ų
Buried surface area upon binding
BSA apolar 366.0Ų
Hydrophobic contacts buried
BSA polar 129.7Ų
Polar contacts buried
Fraction buried 84.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 73.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1598.9Ų
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 904.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)