FAIRMol

Z1213668957

Pose ID 11482 Compound 3013 Pose 639

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 Z1213668957
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 high Native mixed SASA done
Strain ΔE
16.2 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.50, Jaccard 0.26, H-bond role recall 0.00
Burial
84%
Hydrophobic fit
83%
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-0.767 kcal/mol/HA) ✓ Good fit quality (FQ -7.32) ✓ Deep burial (84% SASA buried) ✓ Lipophilic contacts well-matched (83%) ✗ Moderate strain (16.2 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (7)
Score
-22.234
kcal/mol
LE
-0.767
kcal/mol/HA
Fit Quality
-7.32
FQ (Leeson)
HAC
29
heavy atoms
MW
406
Da
LogP
4.77
cLogP
Final rank
1.9635
rank score
Inter norm
-0.785
normalised
Contacts
17
H-bonds 3
Strain ΔE
16.2 kcal/mol
SASA buried
84%
Lipo contact
83% BSA apolar/total
SASA unbound
613 Ų
Apolar buried
427 Ų

Interaction summary

HBD 1 HBA 1 HY 5 PI 4 CLASH 2

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. 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: strict.
Name5S9TContacts12
PoseOpen native poseHB0
IFP residues
ALA365 ARG228 ARG331 GLY229 LEU332 LEU334 MET333 PHE198 PHE230 SER364 THR374 VAL366
Current overlap6Native recall0.50
Jaccard0.26RMSD-
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
613 0.6488964054026861 -1.13725 -30.9663 5 16 0 0.00 0.00 - no Open
639 1.9635390391236196 -0.784758 -22.2341 3 17 6 0.50 0.00 - no Current
636 2.461590206176231 -1.21836 -34.2265 8 18 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 -22.234kcal/mol
Ligand efficiency (LE) -0.7667kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.319
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 405.8Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.77
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 16.20kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 69.55kcal/mol
Minimised FF energy 53.35kcal/mol

SASA & burial

✓ computed
SASA (unbound) 613.3Ų
Total solvent-accessible surface area of free ligand
BSA total 512.2Ų
Buried surface area upon binding
BSA apolar 427.1Ų
Hydrophobic contacts buried
BSA polar 85.1Ų
Polar contacts buried
Fraction buried 83.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 83.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6483.4Ų
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 8063.1Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 2094.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)