FAIRMol

Z2301684603

Pose ID 14114 Compound 5359 Pose 556

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T21
T. cruzi R5P T. cruzi
Ligand Z2301684603
PDB3K7O

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
13.5 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.93, Jaccard 0.81, H-bond role recall 0.33
Burial
79%
Hydrophobic fit
92%
Reason: no major geometry red flags detected
1 protein-contact clashes
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
Yes
ADMET alerts (in-silico)
hERG Low Ames Clear DILI Low
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.105 kcal/mol/HA) ✓ Good fit quality (FQ -10.18) ✓ Good H-bonds (4 bonds) ✓ Deep burial (79% SASA buried) ✓ Lipophilic contacts well-matched (92%) ✗ Moderate strain (13.5 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (8)
Score
-28.721
kcal/mol
LE
-1.105
kcal/mol/HA
Fit Quality
-10.18
FQ (Leeson)
HAC
26
heavy atoms
MW
350
Da
LogP
5.40
cLogP
Final rank
1.5263
rank score
Inter norm
-1.021
normalised
Contacts
15
H-bonds 6
Strain ΔE
13.5 kcal/mol
SASA buried
79%
Lipo contact
92% BSA apolar/total
SASA unbound
588 Ų
Apolar buried
427 Ų

Interaction summary

HBD 1 HBA 3 HY 3 PI 1 CLASH 1

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 4.

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.
Name3K7OContacts14
PoseOpen native poseHB0
IFP residues
ARG137 ARG141 ASN103 HIS102 HIS138 ASP10 CYS69 GLY70 GLY74 HIS11 ILE73 PRO12 SER71 TYR46
Current overlap13Native recall0.93
Jaccard0.81RMSD-
HB strict3Strict recall0.25
HB same residue+role3HB role recall0.33
HB same residue4HB residue recall0.50

Protein summary

305 residues
Protein targetT21Atoms4646
Residues305Chains2
Residue summaryARG:576; ILE:532; VAL:512; GLU:420; ALA:360; PHE:240; HIS:238; LYS:220; THR:210; LEU:190; PRO:168; TYR:168; GLY:154; SER:154; ASP:144; ASN:112

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
556 1.5262521228521062 -1.02063 -28.7215 6 15 13 0.93 0.33 - 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 -28.721kcal/mol
Ligand efficiency (LE) -1.1047kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.178
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 26HA

Physicochemical properties

Molecular weight 349.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.40
Lipinski: ≤ 5
Rotatable bonds 2

Conformational strain (MMFF94s)

Strain energy (ΔE) 13.49kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 89.75kcal/mol
Minimised FF energy 76.25kcal/mol

SASA & burial

✓ computed
SASA (unbound) 588.0Ų
Total solvent-accessible surface area of free ligand
BSA total 464.8Ų
Buried surface area upon binding
BSA apolar 427.0Ų
Hydrophobic contacts buried
BSA polar 37.8Ų
Polar contacts buried
Fraction buried 79.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 91.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2260.4Ų
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 2482.0Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 757.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)