FAIRMol

Z1274773112

Pose ID 13973 Compound 3396 Pose 415

DB SELECTIONDocking 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 Z1274773112
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
16.3 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.93, Jaccard 0.87, H-bond role recall 0.78
Burial
89%
Hydrophobic fit
71%
Reason: no major geometry red flags detected
2 protein-contact clashes
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Not classified (>100 mg/L)
Daphnia EC₅₀
Not classified (>100 mg/L)
Algae IC₅₀
Not classified (>100 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
No
ADMET alerts (in-silico)
hERG Low Ames Clear DILI Low
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.459 kcal/mol/HA) ✓ Good fit quality (FQ -10.78) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (89% SASA buried) ✓ Lipophilic contacts well-matched (71%) ✗ Moderate strain (16.3 kcal/mol) ✗ Geometry warnings
Score
-21.882
kcal/mol
LE
-1.459
kcal/mol/HA
Fit Quality
-10.78
FQ (Leeson)
HAC
15
heavy atoms
MW
205
Da
LogP
0.52
cLogP
Final rank
3.2238
rank score
Inter norm
-1.685
normalised
Contacts
14
H-bonds 11
Strain ΔE
16.3 kcal/mol
SASA buried
89%
Lipo contact
71% BSA apolar/total
SASA unbound
402 Ų
Apolar buried
253 Ų

Interaction summary

HBD 3 HBA 5 HY 3 PI 3 CLASH 2

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 7.

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
Jaccard0.87RMSD-
HB strict7Strict recall0.58
HB same residue+role7HB role recall0.78
HB same residue7HB residue recall0.88

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
366 2.1418080373737727 -1.61284 -20.6199 12 18 0 0.00 0.00 - no Open
415 3.2238161633309947 -1.68549 -21.8819 11 14 13 0.93 0.78 - 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 -21.882kcal/mol
Ligand efficiency (LE) -1.4588kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.779
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 15HA

Physicochemical properties

Molecular weight 205.2Da
Lipinski: ≤ 500 Da
LogP (cLogP) 0.52
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 16.26kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 81.55kcal/mol
Minimised FF energy 65.29kcal/mol

SASA & burial

✓ computed
SASA (unbound) 401.5Ų
Total solvent-accessible surface area of free ligand
BSA total 356.1Ų
Buried surface area upon binding
BSA apolar 253.4Ų
Hydrophobic contacts buried
BSA polar 102.7Ų
Polar contacts buried
Fraction buried 88.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 71.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2026.4Ų
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 750.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)