FAIRMol

Z28307400

Pose ID 8017 Compound 3894 Pose 565

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 Z28307400
PDB6FXS

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
50.3 kcal/mol
Protein clashes
4
Internal clashes
4
Native overlap
contact recall 0.94, Jaccard 0.88, H-bond role recall 0.50
Burial
74%
Hydrophobic fit
68%
Reason: strain 50.3 kcal/mol
strain ΔE 50.3 kcal/mol 4 protein-contact clashes 4 intramolecular clashes
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Daphnia EC₅₀
Cat. 1 — Very toxic (≤1 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 Risk
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-1.085 kcal/mol/HA) ✓ Good fit quality (FQ -10.25) ✓ Good H-bonds (5 bonds) ✓ Deep burial (74% SASA buried) ✓ Lipophilic contacts well-matched (68%) ✗ Extreme strain energy (50.3 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (6)
Score
-30.392
kcal/mol
LE
-1.085
kcal/mol/HA
Fit Quality
-10.25
FQ (Leeson)
HAC
28
heavy atoms
MW
434
Da
LogP
4.68
cLogP
Final rank
3.3551
rank score
Inter norm
-0.977
normalised
Contacts
16
H-bonds 6
Strain ΔE
50.3 kcal/mol
SASA buried
74%
Lipo contact
68% BSA apolar/total
SASA unbound
689 Ų
Apolar buried
343 Ų

Interaction summary

HBA 5 HY 3 PI 4 CLASH 4

HBD/HBA · H-bonds (geometric)

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

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 overlap15Native recall0.94
Jaccard0.88RMSD-
HB strict5Strict recall0.42
HB same residue+role5HB role recall0.50
HB same residue5HB residue recall0.50

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
601 1.0791086976020072 -0.861977 -33.7801 7 12 0 0.00 0.00 - no Open
565 3.355069477340488 -0.976536 -30.3918 6 16 15 0.94 0.50 - 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 -30.392kcal/mol
Ligand efficiency (LE) -1.0854kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.247
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 28HA

Physicochemical properties

Molecular weight 433.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.68
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 50.35kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -1.66kcal/mol
Minimised FF energy -52.01kcal/mol

SASA & burial

✓ computed
SASA (unbound) 689.1Ų
Total solvent-accessible surface area of free ligand
BSA total 508.1Ų
Buried surface area upon binding
BSA apolar 343.2Ų
Hydrophobic contacts buried
BSA polar 164.9Ų
Polar contacts buried
Fraction buried 73.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 67.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2146.6Ų
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 2454.8Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 787.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)