FAIRMol

Z25044792

Pose ID 7953 Compound 3850 Pose 501

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 Z25044792
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 but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
16.3 kcal/mol
Protein clashes
0
Internal clashes
8
Native overlap
contact recall 0.94, Jaccard 0.79, H-bond role recall 0.50
Burial
90%
Hydrophobic fit
78%
Reason: 8 internal clashes
8 intramolecular clashes
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Cat. 3 — Harmful (10–100 mg/L)
Daphnia EC₅₀
Cat. 3 — Harmful (10–100 mg/L)
Algae IC₅₀
Cat. 3 — Harmful (10–100 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 (-1.181 kcal/mol/HA) ✓ Good fit quality (FQ -10.42) ✓ Good H-bonds (5 bonds) ✓ Deep burial (90% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ Moderate strain (16.3 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (8)
Score
-27.157
kcal/mol
LE
-1.181
kcal/mol/HA
Fit Quality
-10.42
FQ (Leeson)
HAC
23
heavy atoms
MW
331
Da
LogP
3.20
cLogP
Final rank
1.7530
rank score
Inter norm
-1.196
normalised
Contacts
18
H-bonds 8
Strain ΔE
16.3 kcal/mol
SASA buried
90%
Lipo contact
78% BSA apolar/total
SASA unbound
554 Ų
Apolar buried
389 Ų

Interaction summary

HBA 5 HY 5 PI 4 CLASH 0

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: permissive. Residues: 5.

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: permissive.
Name6FXSContacts16
PoseOpen native poseHB0
IFP residues
ARG140 ARG144 ASN106 HIS105 HIS141 ARG46 ASP13 CYS72 GLY73 GLY75 GLY77 HIS14 ILE15 ILE76 SER74 TYR49
Current overlap15Native recall0.94
Jaccard0.79RMSD-
HB strict5Strict recall0.42
HB same residue+role5HB role recall0.50
HB same residue6HB residue recall0.60

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
501 1.7530145294125725 -1.19612 -27.157 8 18 15 0.94 0.50 - no Current
541 1.7917284899523918 -0.962316 -20.5991 3 13 0 0.00 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 -27.157kcal/mol
Ligand efficiency (LE) -1.1807kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.421
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 23HA

Physicochemical properties

Molecular weight 331.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.20
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 16.33kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 93.76kcal/mol
Minimised FF energy 77.43kcal/mol

SASA & burial

✓ computed
SASA (unbound) 554.1Ų
Total solvent-accessible surface area of free ligand
BSA total 496.9Ų
Buried surface area upon binding
BSA apolar 389.0Ų
Hydrophobic contacts buried
BSA polar 107.9Ų
Polar contacts buried
Fraction buried 89.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2122.8Ų
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 2454.8Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 764.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)