FAIRMol

Z73374701

Pose ID 7805 Compound 2188 Pose 353

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T12
T. brucei R5P T. brucei
Ligand Z73374701
PDB6FXS

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 strong SASA done
Strain ΔE
16.1 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.88, Jaccard 0.82, H-bond role recall 0.30
Burial
73%
Hydrophobic fit
71%
Reason: no major geometry red flags detected
2 protein-contact clashes 50% of hydrophobic surface appears solvent-exposed (9/18 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Daphnia EC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Algae IC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
No
ADMET alerts (in-silico)
hERG Medium Ames Clear DILI Low
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.037 kcal/mol/HA) ✓ Good fit quality (FQ -9.67) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (73% SASA buried) ✓ Lipophilic contacts well-matched (71%) ✗ Moderate strain (16.1 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (5)
Score
-27.998
kcal/mol
LE
-1.037
kcal/mol/HA
Fit Quality
-9.67
FQ (Leeson)
HAC
27
heavy atoms
MW
403
Da
LogP
3.67
cLogP
Final rank
2.7452
rank score
Inter norm
-1.010
normalised
Contacts
15
H-bonds 6
Strain ΔE
16.1 kcal/mol
SASA buried
73%
Lipo contact
71% BSA apolar/total
SASA unbound
648 Ų
Apolar buried
336 Ų

Interaction summary

HBA 6 HY 4 PI 3 CLASH 2

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

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name6FXSContacts16
PoseOpen native poseHB0
IFP residues
ARG140 ARG144 ASN106 HIS105 HIS141 ARG46 ASP13 CYS72 GLY73 GLY75 GLY77 HIS14 ILE15 ILE76 SER74 TYR49
Current overlap14Native recall0.88
Jaccard0.82RMSD-
HB strict5Strict recall0.42
HB same residue+role3HB role recall0.30
HB same residue3HB residue recall0.30

Protein summary

302 residues
Protein targetT12Atoms4598
Residues302Chains2
Residue summaryARG:576; ILE:456; VAL:448; GLU:360; ALA:340; LEU:304; TYR:252; HIS:204; PRO:196; THR:196; GLY:182; LYS:176; ASP:168; PHE:160; MET:153; SER:121

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:CSD72

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
102 1.517836335498182 -1.03041 -28.7494 6 15 14 0.88 0.30 - no Open
107 2.622610430889731 -1.11591 -28.2968 6 12 0 0.00 0.00 - no Open
353 2.7452201618408285 -1.0098 -27.9976 6 15 14 0.88 0.30 - no Current
334 3.6216855532747294 -0.93662 -19.8682 14 14 5 0.31 0.20 - 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 -27.998kcal/mol
Ligand efficiency (LE) -1.0369kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.674
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 403.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.67
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 16.13kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 17.16kcal/mol
Minimised FF energy 1.03kcal/mol

SASA & burial

✓ computed
SASA (unbound) 647.5Ų
Total solvent-accessible surface area of free ligand
BSA total 471.6Ų
Buried surface area upon binding
BSA apolar 336.0Ų
Hydrophobic contacts buried
BSA polar 135.6Ų
Polar contacts buried
Fraction buried 72.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 71.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2144.4Ų
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 2454.8Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 770.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)