FAIRMol

Z25076860

Pose ID 4530 Compound 2890 Pose 467

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 Z25076860
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
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
25.8 kcal/mol
Protein clashes
11
Internal clashes
12
Native overlap
contact recall 0.58, Jaccard 0.48, H-bond role recall 0.40
Burial
96%
Hydrophobic fit
70%
Reason: 11 protein-contact clashes, 12 internal clashes
11 protein-contact clashes 12 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.222 kcal/mol/HA) ✓ Good fit quality (FQ -10.61) ✓ Deep burial (96% SASA buried) ✓ Lipophilic contacts well-matched (70%) ✗ High strain energy (25.8 kcal/mol) ✗ Geometry warnings
Score
-26.872
kcal/mol
LE
-1.222
kcal/mol/HA
Fit Quality
-10.61
FQ (Leeson)
HAC
22
heavy atoms
MW
347
Da
LogP
0.38
cLogP
Final rank
2.1446
rank score
Inter norm
-1.605
normalised
Contacts
15
H-bonds 8
Strain ΔE
25.8 kcal/mol
SASA buried
96%
Lipo contact
70% BSA apolar/total
SASA unbound
577 Ų
Apolar buried
385 Ų

Interaction summary

HBD 2 HY 9 PI 1 CLASH 12

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: permissive. Residues: 2.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: permissive.
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 overlap11Native recall0.58
Jaccard0.48RMSD-
HB strict2Strict recall0.33
HB same residue+role2HB role recall0.40
HB same residue3HB residue recall0.60

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
467 2.144569506024685 -1.60463 -26.8724 8 15 11 0.58 0.40 - 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 -26.872kcal/mol
Ligand efficiency (LE) -1.2215kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.605
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 22HA

Physicochemical properties

Molecular weight 346.8Da
Lipinski: ≤ 500 Da
LogP (cLogP) 0.38
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 25.83kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 45.44kcal/mol
Minimised FF energy 19.61kcal/mol

SASA & burial

✓ computed
SASA (unbound) 577.4Ų
Total solvent-accessible surface area of free ligand
BSA total 551.5Ų
Buried surface area upon binding
BSA apolar 384.8Ų
Hydrophobic contacts buried
BSA polar 166.7Ų
Polar contacts buried
Fraction buried 95.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 69.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1517.9Ų
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 942.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)