FAIRMol

Z57457889

Pose ID 10017 Compound 1267 Pose 531

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 Z57457889
PDB9IFF

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 medium Native strong SASA done
Strain ΔE
15.6 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.62, Jaccard 0.44
Burial
67%
Hydrophobic fit
82%
Reason: no major geometry red flags detected
3 protein-contact clashes 3 intramolecular clashes 44% of hydrophobic surface appears solvent-exposed (11/25 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Cat. 1 — Very toxic (≤1 mg/L)
Daphnia EC₅₀
Cat. 1 — Very toxic (≤1 mg/L)
Algae IC₅₀
Cat. 1 — Very toxic (≤1 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
No
ADMET alerts (in-silico)
hERG Medium Ames Clear DILI Risk
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.645 kcal/mol/HA) ✓ Good fit quality (FQ -6.29) ✓ Good H-bonds (4 bonds) ✓ Deep burial (67% SASA buried) ✓ Lipophilic contacts well-matched (82%) ✗ Moderate strain (15.6 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (15)
Score
-20.002
kcal/mol
LE
-0.645
kcal/mol/HA
Fit Quality
-6.29
FQ (Leeson)
HAC
31
heavy atoms
MW
406
Da
LogP
4.85
cLogP
Final rank
2.9396
rank score
Inter norm
-0.774
normalised
Contacts
13
H-bonds 6
Strain ΔE
15.6 kcal/mol
SASA buried
67%
Lipo contact
82% BSA apolar/total
SASA unbound
673 Ų
Apolar buried
366 Ų

Interaction summary

HBD 3 HBA 1 HY 5 PI 0 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

No pi · π–π interactions detected for this pose.

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.
Name9IFFContacts13
PoseOpen native poseHB0
IFP residues
ALA209 ARG74 ASN208 GLY214 GLY215 GLY85 LEU73 LYS211 MET70 PHE83 PRO212 PRO213 VAL88
Current overlap8Native recall0.62
Jaccard0.44RMSD-
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
429 0.3763685020700806 -1.11733 -30.2356 4 13 0 0.00 - - no Open
456 0.8291394658452832 -1.13404 -36.6273 9 15 0 0.00 - - no Open
460 1.4845961023568308 -0.936064 -28.1676 4 18 0 0.00 - - no Open
479 2.2465523555658673 -1.07372 -31.8463 6 14 0 0.00 - - no Open
478 2.6811516906246866 -0.848983 -23.9664 4 16 0 0.00 - - no Open
431 2.7950112958399265 -0.797896 -16.0129 3 18 0 0.00 - - no Open
531 2.9396166091762534 -0.774253 -20.0016 6 13 8 0.62 - - no Current
440 5.900848019733364 -0.907256 -20.21 8 14 0 0.00 - - no Open
457 7.7386159492059985 -1.02476 -29.1943 16 22 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 -20.002kcal/mol
Ligand efficiency (LE) -0.6452kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.286
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 31HA

Physicochemical properties

Molecular weight 406.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.85
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 15.63kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 117.69kcal/mol
Minimised FF energy 102.05kcal/mol

SASA & burial

✓ computed
SASA (unbound) 672.7Ų
Total solvent-accessible surface area of free ligand
BSA total 448.1Ų
Buried surface area upon binding
BSA apolar 365.6Ų
Hydrophobic contacts buried
BSA polar 82.4Ų
Polar contacts buried
Fraction buried 66.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 81.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2985.6Ų
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 1593.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)