FAIRMol

Z49613286

Pose ID 5334 Compound 1321 Pose 593

DB fairmolDocking 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 Z49613286
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
37.4 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.42, Jaccard 0.36, H-bond role recall 0.40
Burial
83%
Hydrophobic fit
67%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.596 kcal/mol/HA) ✓ Good fit quality (FQ -14.70) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (83% SASA buried) ✓ Lipophilic contacts well-matched (67%) ✗ Very high strain energy (37.4 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (11)
Score
-41.486
kcal/mol
LE
-1.596
kcal/mol/HA
Fit Quality
-14.70
FQ (Leeson)
HAC
26
heavy atoms
MW
358
Da
LogP
0.95
cLogP
Final rank
2.1246
rank score
Inter norm
-1.456
normalised
Contacts
11
H-bonds 14
Strain ΔE
37.4 kcal/mol
SASA buried
83%
Lipo contact
67% BSA apolar/total
SASA unbound
575 Ų
Apolar buried
318 Ų

Interaction summary

HBD 4 HBA 4 HY 4 PI 1 CLASH 1

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 5.

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: 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 overlap8Native recall0.42
Jaccard0.36RMSD-
HB strict3Strict recall0.50
HB same residue+role2HB role recall0.40
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
615 1.9814526955982046 -0.81173 -22.1082 8 14 0 0.00 0.00 - no Open
593 2.1246165125633567 -1.45629 -41.4862 14 11 8 0.42 0.40 - no Current
600 2.129495667847415 -1.52839 -33.3711 10 20 15 0.79 0.80 - no Open
610 2.3040923937170814 -0.959116 -25.444 4 12 0 0.00 0.00 - no Open
609 2.662306438978959 -1.09542 -25.9422 8 15 0 0.00 0.00 - no Open
604 3.5954968466101134 -1.23305 -28.772 12 19 0 0.00 0.00 - no Open
624 3.6470603085999342 -1.05347 -34.1919 9 16 0 0.00 0.00 - no Open
622 3.9687442161044406 -0.993806 -26.7144 9 14 0 0.00 0.00 - no Open
614 5.561407115049735 -1.25648 -39.0428 16 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 -41.486kcal/mol
Ligand efficiency (LE) -1.5956kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -14.701
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 26HA

Physicochemical properties

Molecular weight 358.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 0.95
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 37.43kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 199.63kcal/mol
Minimised FF energy 162.20kcal/mol

SASA & burial

✓ computed
SASA (unbound) 575.0Ų
Total solvent-accessible surface area of free ligand
BSA total 474.8Ų
Buried surface area upon binding
BSA apolar 318.0Ų
Hydrophobic contacts buried
BSA polar 156.8Ų
Polar contacts buried
Fraction buried 82.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 67.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1479.3Ų
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 957.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)