FAIRMol

TC64

Pose ID 13744 Compound 5377 Pose 186

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 TC64
PDB3K7O

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Weak or marginal quality
Binding strong Geometry high Native strong SASA done
Strain ΔE
23.0 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.93, Jaccard 0.76, H-bond role recall 0.33
Burial
75%
Hydrophobic fit
90%
Reason: no major geometry red flags detected
1 protein-contact clashes 41% of hydrophobic surface appears solvent-exposed (12/29 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
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 Risk
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.751 kcal/mol/HA) ✓ Good fit quality (FQ -7.31) ✓ Good H-bonds (3 bonds) ✓ Deep burial (75% SASA buried) ✓ Lipophilic contacts well-matched (90%) ✗ High strain energy (23.0 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-23.275
kcal/mol
LE
-0.751
kcal/mol/HA
Fit Quality
-7.31
FQ (Leeson)
HAC
31
heavy atoms
MW
417
Da
LogP
5.74
cLogP
Final rank
1.9081
rank score
Inter norm
-0.883
normalised
Contacts
16
H-bonds 5
Strain ΔE
23.0 kcal/mol
SASA buried
75%
Lipo contact
90% BSA apolar/total
SASA unbound
705 Ų
Apolar buried
476 Ų

Interaction summary

HBD 1 HBA 2 HY 3 PI 0 CLASH 1

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 3.

PI · π–π interactions

No pi · π–π interactions detected for this pose.

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
Jaccard0.76RMSD-
HB strict3Strict recall0.25
HB same residue+role3HB role recall0.33
HB same residue3HB residue recall0.38

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
186 1.9081107695392754 -0.882832 -23.2746 5 16 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 -23.275kcal/mol
Ligand efficiency (LE) -0.7508kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.314
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 31HA

Physicochemical properties

Molecular weight 416.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.74
Lipinski: ≤ 5
Rotatable bonds 3

Conformational strain (MMFF94s)

Strain energy (ΔE) 22.99kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 102.19kcal/mol
Minimised FF energy 79.20kcal/mol

SASA & burial

✓ computed
SASA (unbound) 705.0Ų
Total solvent-accessible surface area of free ligand
BSA total 529.7Ų
Buried surface area upon binding
BSA apolar 476.2Ų
Hydrophobic contacts buried
BSA polar 53.4Ų
Polar contacts buried
Fraction buried 75.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 89.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2353.8Ų
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 2482.0Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 762.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)