FAIRMol

Z71526968

Pose ID 13943 Compound 2479 Pose 385

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 Z71526968
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
33.0 kcal/mol
Protein clashes
4
Internal clashes
4
Native overlap
contact recall 0.93, Jaccard 0.68, H-bond role recall 0.67
Burial
75%
Hydrophobic fit
71%
Reason: no major geometry red flags detected
4 protein-contact clashes 4 intramolecular clashes
EcoTox / ADMET GDS: UNSAFE UL GreenDrugScore ML model
ECOscore
0.846
aquatic tox · BCF · biodeg.
GDS₃ (3-block)
0.549
ADMET + ECO + DL
ADMETscore (GDS)
0.517
absorption · distr. · metab.
DLscore
0.430
drug-likeness
P(SAFE)
0.02
GDS classification
ADMET alerts (in-silico)
hERG Medium Ames Clear DILI Low
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.806 kcal/mol/HA) ✓ Good fit quality (FQ -7.77) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (75% SASA buried) ✓ Lipophilic contacts well-matched (71%) ✗ Very high strain energy (33.0 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (8)
Score
-24.173
kcal/mol
LE
-0.806
kcal/mol/HA
Fit Quality
-7.77
FQ (Leeson)
HAC
30
heavy atoms
MW
428
Da
LogP
2.48
cLogP
Final rank
4.4760
rank score
Inter norm
-0.875
normalised
Contacts
18
H-bonds 13
Strain ΔE
33.0 kcal/mol
SASA buried
75%
Lipo contact
71% BSA apolar/total
SASA unbound
704 Ų
Apolar buried
374 Ų

Interaction summary

HBD 1 HBA 8 HY 4 PI 5 CLASH 4

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 6.

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
Jaccard0.68RMSD-
HB strict7Strict recall0.58
HB same residue+role6HB role recall0.67
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
354 1.0074397076501438 -0.8242 -22.6166 2 15 0 0.00 0.00 - no Open
357 2.4327438982853953 -0.804406 -19.4622 6 17 0 0.00 0.00 - no Open
333 3.304869383873618 -0.79159 -24.6563 10 15 0 0.00 0.00 - no Open
397 3.7530702112916203 -0.7074 -18.7902 9 13 0 0.00 0.00 - no Open
385 4.47602762898413 -0.875143 -24.1726 13 18 13 0.93 0.67 - 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 -24.173kcal/mol
Ligand efficiency (LE) -0.8058kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.773
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 428.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.48
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 33.05kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 36.36kcal/mol
Minimised FF energy 3.31kcal/mol

SASA & burial

✓ computed
SASA (unbound) 704.3Ų
Total solvent-accessible surface area of free ligand
BSA total 527.5Ų
Buried surface area upon binding
BSA apolar 373.9Ų
Hydrophobic contacts buried
BSA polar 153.6Ų
Polar contacts buried
Fraction buried 74.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 70.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2260.1Ų
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 764.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)