FAIRMol

Z1536704858

Pose ID 4539 Compound 2866 Pose 476

DB fairmolDocking 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 Z1536704858
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 medium Native mixed SASA done
Strain ΔE
14.5 kcal/mol
Protein clashes
4
Internal clashes
4
Native overlap
contact recall 0.47, Jaccard 0.39, H-bond role recall 0.20
Burial
99%
Hydrophobic fit
84%
Reason: no major geometry red flags detected
4 protein-contact clashes 4 intramolecular clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.482 kcal/mol/HA) ✓ Good fit quality (FQ -12.40) ✓ Good H-bonds (3 bonds) ✓ Deep burial (99% SASA buried) ✓ Lipophilic contacts well-matched (84%) ✗ Moderate strain (14.5 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (8)
Score
-29.630
kcal/mol
LE
-1.482
kcal/mol/HA
Fit Quality
-12.40
FQ (Leeson)
HAC
20
heavy atoms
MW
290
Da
LogP
2.49
cLogP
Strain ΔE
14.5 kcal/mol
SASA buried
99%
Lipo contact
84% BSA apolar/total
SASA unbound
530 Ų
Apolar buried
437 Ų

Interaction summary

HB 3 HY 24 PI 2 CLASH 4

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 rank1.722Score-29.630
Inter norm-1.509Intra norm0.028
Top1000noExcludedno
Contacts13H-bonds3
Artifact reasongeometry warning; 8 clashes; 1 protein clash
Residues
ARG14 ASN175 ASP161 CYS168 LEU208 MET163 NAP301 PHE171 PHE97 PRO167 PRO210 TYR174 VAL164

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 overlap9Native recall0.47
Jaccard0.39RMSD-
HB strict1Strict recall0.17
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.20

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
476 1.7219612985173627 -1.50933 -29.6301 3 13 9 0.47 0.20 - 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 -29.630kcal/mol
Ligand efficiency (LE) -1.4815kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -12.398
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 20HA

Physicochemical properties

Molecular weight 290.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.49
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 14.46kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -38.38kcal/mol
Minimised FF energy -52.85kcal/mol

SASA & burial

✓ computed
SASA (unbound) 529.9Ų
Total solvent-accessible surface area of free ligand
BSA total 523.1Ų
Buried surface area upon binding
BSA apolar 437.3Ų
Hydrophobic contacts buried
BSA polar 85.9Ų
Polar contacts buried
Fraction buried 98.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 83.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1577.4Ų
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 917.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)