FAIRMol

Z56765438

Pose ID 4450 Compound 2642 Pose 387

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 Z56765438
PDB6RX6

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Promising SASA cached
Promising and worth follow-up
Binding strong Geometry high Native strong SASA done
Strain ΔE
15.8 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.74, Jaccard 0.70, H-bond role recall 0.80
Burial
93%
Hydrophobic fit
76%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.220 kcal/mol/HA) ✓ Good fit quality (FQ -10.93) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (93% SASA buried) ✓ Lipophilic contacts well-matched (76%) ✗ Moderate strain (15.8 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (4) ✗ Internal clashes (9)
Score
-29.280
kcal/mol
LE
-1.220
kcal/mol/HA
Fit Quality
-10.93
FQ (Leeson)
HAC
24
heavy atoms
MW
324
Da
LogP
3.45
cLogP
Strain ΔE
15.8 kcal/mol
SASA buried
93%
Lipo contact
76% BSA apolar/total
SASA unbound
540 Ų
Apolar buried
384 Ų

Interaction summary

HB 9 HY 24 PI 5 CLASH 1
Final rank0.361Score-29.280
Inter norm-1.340Intra norm0.120
Top1000noExcludedno
Contacts15H-bonds9
Artifact reasongeometry warning; 9 clashes; 4 protein contact clashes; 1 severe cofactor-context clash
Residues
ARG14 ASP161 CYS168 GLU217 LEU208 LEU209 LYS178 MET213 NAP301 PHE171 PHE97 PRO210 SER95 TRP221 TYR174

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 overlap14Native recall0.74
Jaccard0.70RMSD-
HB strict5Strict recall0.83
HB same residue+role4HB role recall0.80
HB same residue4HB residue recall0.80

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
387 0.36051882321163314 -1.34004 -29.2797 9 15 14 0.74 0.80 - no Current
417 1.8908796334170939 -1.35793 -33.9757 10 14 12 0.63 0.80 - no Open
435 1.9004749194382002 -1.02058 -25.9903 11 17 0 0.00 0.00 - no Open
419 2.807878564222623 -1.0264 -24.6204 7 9 0 0.00 0.00 - no Open
403 3.0441745044344053 -1.17278 -25.3923 9 16 0 0.00 0.00 - no Open
401 3.272585015045708 -1.014 -21.3315 7 16 0 0.00 0.00 - no Open
496 4.171712409869473 -0.992234 -24.6771 8 13 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 -29.280kcal/mol
Ligand efficiency (LE) -1.2200kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.933
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 24HA

Physicochemical properties

Molecular weight 324.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.45
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 15.81kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 65.59kcal/mol
Minimised FF energy 49.78kcal/mol

SASA & burial

✓ computed
SASA (unbound) 539.6Ų
Total solvent-accessible surface area of free ligand
BSA total 501.5Ų
Buried surface area upon binding
BSA apolar 383.6Ų
Hydrophobic contacts buried
BSA polar 117.9Ų
Polar contacts buried
Fraction buried 92.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 76.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1559.2Ų
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 912.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)