FAIRMol

Z56919893

Pose ID 11302 Compound 1918 Pose 459

DB SELECTIONDocking 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 Z56919893
PDB5S9T

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 strong SASA done
Strain ΔE
19.4 kcal/mol
Protein clashes
0
Internal clashes
5
Native overlap
contact recall 0.67, Jaccard 0.42, H-bond role recall 0.00
Burial
80%
Hydrophobic fit
71%
Reason: no major geometry red flags detected
5 intramolecular clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.063 kcal/mol/HA) ✓ Good fit quality (FQ -9.53) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (80% SASA buried) ✓ Lipophilic contacts well-matched (71%) ✗ Moderate strain (19.4 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (5)
Score
-25.508
kcal/mol
LE
-1.063
kcal/mol/HA
Fit Quality
-9.53
FQ (Leeson)
HAC
24
heavy atoms
MW
369
Da
LogP
0.38
cLogP
Strain ΔE
19.4 kcal/mol
SASA buried
80%
Lipo contact
71% BSA apolar/total
SASA unbound
589 Ų
Apolar buried
335 Ų

Interaction summary

HB 9 HY 22 PI 1 CLASH 0

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

No clash · clashes detected for this pose.
Final rank3.459Score-25.508
Inter norm-1.031Intra norm-0.032
Top1000noExcludedno
Contacts15H-bonds9
Artifact reasongeometry warning; 5 clashes; 3 protein clashes
Residues
ALA363 ARG361 CYS375 GLY229 GLY376 HIS359 LEU332 LEU334 MET333 PHE198 PHE230 SER364 THR360 THR374 VAL362

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 overlap8Native recall0.67
Jaccard0.42RMSD-
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
374 2.0865146822246143 -1.38198 -34.324 7 19 0 0.00 0.00 - no Open
413 2.6943961769928566 -0.984124 -21.2873 11 16 0 0.00 0.00 - no Open
410 2.7399256456858576 -1.07947 -26.8497 10 12 0 0.00 0.00 - no Open
459 3.458566031907076 -1.03078 -25.5076 9 15 8 0.67 0.00 - no Current
392 3.7441207624658626 -1.27643 -28.7503 11 17 0 0.00 0.00 - no Open
387 4.41582415185168 -1.27937 -27.7085 14 16 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 -25.508kcal/mol
Ligand efficiency (LE) -1.0628kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.525
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 24HA

Physicochemical properties

Molecular weight 369.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 0.38
Lipinski: ≤ 5
Rotatable bonds 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 19.42kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -22.66kcal/mol
Minimised FF energy -42.07kcal/mol

SASA & burial

✓ computed
SASA (unbound) 588.9Ų
Total solvent-accessible surface area of free ligand
BSA total 473.6Ų
Buried surface area upon binding
BSA apolar 334.9Ų
Hydrophobic contacts buried
BSA polar 138.7Ų
Polar contacts buried
Fraction buried 80.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 70.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6421.9Ų
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 8063.1Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 2043.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)