FAIRMol

Z56849557

Pose ID 10653 Compound 2164 Pose 488

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T16
T. brucei TR (Dimer interface (site 2)) T. brucei Dimer interface (site 2)
Ligand Z56849557
PDB6RB5

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
42.9 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.83, Jaccard 0.50
Burial
71%
Hydrophobic fit
82%
Reason: strain 42.9 kcal/mol
strain ΔE 42.9 kcal/mol 3 protein-contact clashes 3 intramolecular clashes
EcoTox / ADMET GDS: SAFE UL GreenDrugScore ML model
ECOscore
0.359
aquatic tox · BCF · biodeg.
GDS₃ (3-block)
0.400
ADMET + ECO + DL
ADMETscore (GDS)
0.411
absorption · distr. · metab.
DLscore
0.404
drug-likeness
P(SAFE)
0.73
GDS classification
ADMET alerts (in-silico)
hERG High Ames Clear DILI Risk
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.531 kcal/mol/HA) ✓ Good fit quality (FQ -5.47) ✓ Deep burial (71% SASA buried) ✓ Lipophilic contacts well-matched (82%) ✗ Extreme strain energy (42.9 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (13)
Score
-20.168
kcal/mol
LE
-0.531
kcal/mol/HA
Fit Quality
-5.47
FQ (Leeson)
HAC
38
heavy atoms
MW
553
Da
LogP
5.30
cLogP
Final rank
2.9134
rank score
Inter norm
-0.632
normalised
Contacts
18
H-bonds 2
Strain ΔE
42.9 kcal/mol
SASA buried
71%
Lipo contact
82% BSA apolar/total
SASA unbound
844 Ų
Apolar buried
490 Ų

Interaction summary

HBD 1 HBA 1 HY 10 PI 1 CLASH 3

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.
Name6RB5Contacts12
PoseOpen native poseHB0
IFP residues
ALA90 ARG74 GLY85 LEU73 LYS89 MET70 PHE83 PRO212 PRO213 SER86 SER87 VAL88
Current overlap10Native recall0.83
Jaccard0.50RMSD-
HB strict0Strict recall-
HB same residue+role0HB role recall-
HB same residue0HB residue recall-

Protein summary

493 residues
Protein targetT16Atoms7551
Residues493Chains1
Residue summaryVAL:768; LYS:704; LEU:703; ILE:532; GLU:450; THR:434; ARG:408; PHE:400; ALA:390; ASN:350; PRO:350; GLY:336; SER:319; TYR:294; ASP:276; MET:221

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:FAD501

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
376 2.38538977685145 -0.748088 -29.5979 8 14 0 0.00 - - no Open
410 2.531002620908655 -0.839942 -30.6602 9 15 0 0.00 - - no Open
507 2.6120830374456596 -0.623331 -12.3829 3 18 0 0.00 - - no Open
437 2.794037718136994 -0.604459 -17.8959 3 19 0 0.00 - - no Open
488 2.9134037039057636 -0.631802 -20.1678 2 18 10 0.83 - - no Current
397 3.0484229827099503 -0.655948 -18.9257 3 13 0 0.00 - - no Open
405 3.297389648705711 -0.985362 -27.5835 12 21 0 0.00 - - no Open
412 4.086860697814478 -0.610123 -15.4834 6 14 0 0.00 - - no Open
428 4.3700864456086075 -0.792431 -28.084 9 18 0 0.00 - - no Open
397 4.945488414768248 -0.750799 -21.5195 9 20 0 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 -20.168kcal/mol
Ligand efficiency (LE) -0.5307kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.471
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 38HA

Physicochemical properties

Molecular weight 552.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.30
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 42.94kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 56.71kcal/mol
Minimised FF energy 13.77kcal/mol

SASA & burial

✓ computed
SASA (unbound) 843.7Ų
Total solvent-accessible surface area of free ligand
BSA total 601.2Ų
Buried surface area upon binding
BSA apolar 489.9Ų
Hydrophobic contacts buried
BSA polar 111.4Ų
Polar contacts buried
Fraction buried 71.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 81.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3270.2Ų
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 4076.6Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1463.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)