FAIRMol

Z56775819

Pose ID 11387 Compound 2295 Pose 544

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T17
T. brucei TR (Doorstop site) T. brucei Doorstop site
Ligand Z56775819
PDB5S9T

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
28.9 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.92, Jaccard 0.65, H-bond role recall 0.00
Burial
81%
Hydrophobic fit
65%
Reason: no major geometry red flags detected
3 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.864 kcal/mol/HA) ✓ Good fit quality (FQ -7.96) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (81% SASA buried) ✓ Lipophilic contacts well-matched (65%) ✗ High strain energy (28.9 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)
Score
-22.453
kcal/mol
LE
-0.864
kcal/mol/HA
Fit Quality
-7.96
FQ (Leeson)
HAC
26
heavy atoms
MW
364
Da
LogP
1.67
cLogP
Strain ΔE
28.9 kcal/mol
SASA buried
81%
Lipo contact
65% BSA apolar/total
SASA unbound
598 Ų
Apolar buried
315 Ų

Interaction summary

HB 7 HY 15 PI 2 CLASH 3

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 rank3.482Score-22.453
Inter norm-0.925Intra norm0.062
Top1000noExcludedno
Contacts16H-bonds7
Artifact reasongeometry warning; 9 clashes; 2 protein clashes; moderate strain Δ 28.9
Residues
ALA363 ALA365 ARG331 CYS375 GLY229 GLY376 HIS428 LEU332 LEU334 MET333 PHE198 PHE230 SER364 THR374 VAL362 VAL366

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name5S9TContacts12
PoseOpen native poseHB0
IFP residues
ALA365 ARG228 ARG331 GLY229 LEU332 LEU334 MET333 PHE198 PHE230 SER364 THR374 VAL366
Current overlap11Native recall0.92
Jaccard0.65RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

Protein summary

1033 residues
Protein targetT17Atoms15160
Residues1033Chains2
Residue summaryVAL:1536; LEU:1387; LYS:1386; ILE:1064; GLU:900; THR:868; ARG:816; PHE:800; ALA:780; ASN:700; PRO:686; GLY:672; SER:616; TYR:588; ASP:528; MET:408

Receptor context

2 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 2 Excluded HETATM 0
Kept cofactors / ions
A:FAD501 B:FAD501

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
522 2.261262159608891 -0.956395 -21.4623 4 11 0 0.00 0.00 - no Open
532 2.445465122574451 -0.93199 -23.3803 13 17 0 0.00 0.00 - no Open
500 2.521021803203339 -1.41509 -32.6993 6 20 0 0.00 0.00 - no Open
517 2.5299445645219074 -0.770281 -19.8585 5 12 0 0.00 0.00 - no Open
509 3.262137122905528 -1.06992 -27.791 9 14 0 0.00 0.00 - no Open
544 3.481530108671423 -0.925088 -22.453 7 16 11 0.92 0.00 - no Current
497 4.064661269329177 -1.16787 -30.0605 6 15 0 0.00 0.00 - no Open
551 4.1785443525306984 -0.940747 -23.0358 6 13 0 0.00 0.00 - no Open
505 4.605833726720881 -1.07502 -27.6675 13 20 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 -22.453kcal/mol
Ligand efficiency (LE) -0.8636kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.956
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 26HA

Physicochemical properties

Molecular weight 364.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.67
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 28.88kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 66.20kcal/mol
Minimised FF energy 37.32kcal/mol

SASA & burial

✓ computed
SASA (unbound) 597.8Ų
Total solvent-accessible surface area of free ligand
BSA total 484.6Ų
Buried surface area upon binding
BSA apolar 314.9Ų
Hydrophobic contacts buried
BSA polar 169.8Ų
Polar contacts buried
Fraction buried 81.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 65.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6395.1Ų
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 8063.1Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 2075.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)