FAIRMol

Z124168034

Pose ID 10021 Compound 4338 Pose 535

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T15
T. brucei TR (Dimer cleft site) T. brucei Dimer cleft site
Ligand Z124168034
PDB9IFF

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
53.9 kcal/mol
Protein clashes
0
Internal clashes
10
Native overlap
contact recall 0.85, Jaccard 0.65
Burial
73%
Hydrophobic fit
76%
Reason: 10 internal clashes, strain 53.9 kcal/mol
strain ΔE 53.9 kcal/mol 10 intramolecular clashes
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Not classified (>100 mg/L)
Daphnia EC₅₀
Not classified (>100 mg/L)
Algae IC₅₀
Not classified (>100 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
No
ADMET alerts (in-silico)
hERG Low Ames Clear DILI Low
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.960 kcal/mol/HA) ✓ Good fit quality (FQ -8.96) ✓ Good H-bonds (4 bonds) ✓ Deep burial (73% SASA buried) ✓ Lipophilic contacts well-matched (76%) ✗ Extreme strain energy (53.9 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-25.927
kcal/mol
LE
-0.960
kcal/mol/HA
Fit Quality
-8.96
FQ (Leeson)
HAC
27
heavy atoms
MW
390
Da
LogP
1.70
cLogP
Final rank
2.2756
rank score
Inter norm
-0.892
normalised
Contacts
15
H-bonds 5
Strain ΔE
53.9 kcal/mol
SASA buried
73%
Lipo contact
76% BSA apolar/total
SASA unbound
676 Ų
Apolar buried
377 Ų

Interaction summary

HBD 2 HBA 2 HY 4 PI 1 CLASH 0

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 3.

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.

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name9IFFContacts13
PoseOpen native poseHB0
IFP residues
ALA209 ARG74 ASN208 GLY214 GLY215 GLY85 LEU73 LYS211 MET70 PHE83 PRO212 PRO213 VAL88
Current overlap11Native recall0.85
Jaccard0.65RMSD-
HB strict0Strict recall-
HB same residue+role0HB role recall-
HB same residue0HB residue recall-

Protein summary

489 residues
Protein targetT15Atoms7420
Residues489Chains1
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:204

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
535 2.275645851454918 -0.892244 -25.9273 5 15 11 0.85 - - 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 -25.927kcal/mol
Ligand efficiency (LE) -0.9603kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.959
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 390.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.70
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 53.92kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -2.73kcal/mol
Minimised FF energy -56.64kcal/mol

SASA & burial

✓ computed
SASA (unbound) 675.8Ų
Total solvent-accessible surface area of free ligand
BSA total 495.9Ų
Buried surface area upon binding
BSA apolar 377.1Ų
Hydrophobic contacts buried
BSA polar 118.9Ų
Polar contacts buried
Fraction buried 73.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 76.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2993.8Ų
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 4005.2Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1546.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)