FAIRMol

Z432415022

Pose ID 13268 Compound 5243 Pose 389

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T20
T. brucei TR (Z-site (fragment hotspot)) T. brucei Z-site (fragment hotspot)
Ligand Z432415022
PDB9IFH

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 high Native strong SASA done
Strain ΔE
23.9 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.88, Jaccard 0.47, H-bond role recall 0.00
Burial
59%
Hydrophobic fit
90%
Reason: no major geometry red flags detected
2 protein-contact clashes 69% of hydrophobic surface is solvent-exposed (18/26 atoms). Large non-polar area without protein contacts incurs a desolvation penalty and will reduce binding affinity. Consider truncating or replacing the exposed fragment.
EcoTox / ADMET GDS: SAFE UL GreenDrugScore ML model
ECOscore
0.282
aquatic tox · BCF · biodeg.
GDS₃ (3-block)
0.377
ADMET + ECO + DL
ADMETscore (GDS)
0.375
absorption · distr. · metab.
DLscore
0.435
drug-likeness
P(SAFE)
0.76
GDS classification
ADMET alerts (in-silico)
hERG High Ames Clear DILI Risk
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.520 kcal/mol/HA) ✓ Good fit quality (FQ -5.20) ✓ Good burial (59% SASA buried) ✓ Lipophilic contacts well-matched (90%) ✗ High strain energy (23.9 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (16)
Score
-17.667
kcal/mol
LE
-0.520
kcal/mol/HA
Fit Quality
-5.20
FQ (Leeson)
HAC
34
heavy atoms
MW
478
Da
LogP
5.21
cLogP
Final rank
2.9017
rank score
Inter norm
-0.567
normalised
Contacts
14
H-bonds 2
Strain ΔE
23.9 kcal/mol
SASA buried
59%
Lipo contact
90% BSA apolar/total
SASA unbound
754 Ų
Apolar buried
399 Ų

Interaction summary

HBA 2 HY 3 PI 1 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.
Name9IFHContacts8
PoseOpen native poseHB0
IFP residues
ASN402 GLU467 LEU399 PHE396 PRO398 SER394 SER470 THR397
Current overlap7Native recall0.88
Jaccard0.47RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

Protein summary

492 residues
Protein targetT20Atoms7539
Residues492Chains1
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:264; 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
389 2.901671907728243 -0.566642 -17.6668 2 14 7 0.88 0.00 - no Current

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -17.667kcal/mol
Ligand efficiency (LE) -0.5196kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.199
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 34HA

Physicochemical properties

Molecular weight 478.0Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.21
Lipinski: ≤ 5
Rotatable bonds 3

Conformational strain (MMFF94s)

Strain energy (ΔE) 23.92kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 198.20kcal/mol
Minimised FF energy 174.28kcal/mol

SASA & burial

✓ computed
SASA (unbound) 753.5Ų
Total solvent-accessible surface area of free ligand
BSA total 442.9Ų
Buried surface area upon binding
BSA apolar 398.8Ų
Hydrophobic contacts buried
BSA polar 44.1Ų
Polar contacts buried
Fraction buried 58.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 90.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3213.3Ų
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 4069.8Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1542.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)