FAIRMol

Z25106961

Pose ID 14084 Compound 1686 Pose 526

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 Z25106961
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 medium Native strong SASA done
Strain ΔE
24.7 kcal/mol
Protein clashes
4
Internal clashes
4
Native overlap
contact recall 0.93, Jaccard 0.76, H-bond role recall 0.56
Burial
78%
Hydrophobic fit
63%
Reason: no major geometry red flags detected
4 protein-contact clashes 4 intramolecular clashes 56% of hydrophobic surface appears solvent-exposed (9/16 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
EcoTox / ADMET GDS: UNSAFE UL GreenDrugScore ML model
ECOscore
0.489
aquatic tox · BCF · biodeg.
GDS₃ (3-block)
0.390
ADMET + ECO + DL
ADMETscore (GDS)
0.336
absorption · distr. · metab.
DLscore
0.426
drug-likeness
P(SAFE)
0.09
GDS classification
ADMET alerts (in-silico)
hERG Low Ames Clear DILI Low
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.898 kcal/mol/HA) ✓ Good fit quality (FQ -8.27) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (78% SASA buried) ✓ Lipophilic contacts well-matched (63%) ✗ High strain energy (24.7 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (12)
Score
-23.340
kcal/mol
LE
-0.898
kcal/mol/HA
Fit Quality
-8.27
FQ (Leeson)
HAC
26
heavy atoms
MW
389
Da
LogP
1.00
cLogP
Final rank
4.7609
rank score
Inter norm
-0.926
normalised
Contacts
16
H-bonds 7
Strain ΔE
24.7 kcal/mol
SASA buried
78%
Lipo contact
63% BSA apolar/total
SASA unbound
593 Ų
Apolar buried
291 Ų

Interaction summary

HBA 6 HY 3 PI 3 CLASH 4

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

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: permissive.
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 strict5Strict recall0.42
HB same residue+role5HB role recall0.56
HB same residue5HB residue recall0.62

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
518 0.5397774908929125 -1.20585 -30.1209 3 12 0 0.00 0.00 - no Open
492 3.0578396807982866 -1.10728 -27.3242 5 12 0 0.00 0.00 - no Open
508 4.2810557432956955 -1.08069 -25.3239 14 18 0 0.00 0.00 - no Open
526 4.760918559152641 -0.926439 -23.3401 7 16 13 0.93 0.56 - 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 -23.340kcal/mol
Ligand efficiency (LE) -0.8977kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.271
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 26HA

Physicochemical properties

Molecular weight 389.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.00
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 24.70kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -61.25kcal/mol
Minimised FF energy -85.95kcal/mol

SASA & burial

✓ computed
SASA (unbound) 592.5Ų
Total solvent-accessible surface area of free ligand
BSA total 464.9Ų
Buried surface area upon binding
BSA apolar 291.4Ų
Hydrophobic contacts buried
BSA polar 173.4Ų
Polar contacts buried
Fraction buried 78.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 62.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2119.2Ų
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 759.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)