FAIRMol

Z1269163651

Pose ID 14226 Compound 1649 Pose 668

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 Z1269163651
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 medium Native strong SASA done
Strain ΔE
17.9 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.86, Jaccard 0.80, H-bond role recall 0.56
Burial
91%
Hydrophobic fit
67%
Reason: no major geometry red flags detected
3 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.960 kcal/mol/HA) ✓ Good fit quality (FQ -14.01) ✓ Strong H-bond network (10 bonds) ✓ Deep burial (91% SASA buried) ✓ Lipophilic contacts well-matched (67%) ✗ Moderate strain (17.9 kcal/mol) ✗ Geometry warnings
Score
-27.437
kcal/mol
LE
-1.960
kcal/mol/HA
Fit Quality
-14.01
FQ (Leeson)
HAC
14
heavy atoms
MW
207
Da
LogP
-3.26
cLogP
Strain ΔE
17.9 kcal/mol
SASA buried
91%
Lipo contact
67% BSA apolar/total
SASA unbound
396 Ų
Apolar buried
242 Ų

Interaction summary

HB 10 HY 2 PI 0 CLASH 3

HB · H-bonds

Mode: strict. Count shows atom-level H-bonds; unique residues in summary: 0.

PI · π–π interactions

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

HY · Hydrophobic contacts

CLASH · Clashes

Final rank2.172Score-27.437
Inter norm-1.798Intra norm-0.162
Top1000noExcludedno
Contacts13H-bonds10
Artifact reasongeometry warning; 2 clashes; 2 protein clashes
Residues
ARG137 ARG141 ASN103 HIS102 HIS138 CYS69 GLY70 GLY72 GLY74 ILE73 PRO12 SER71 TYR46

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 overlap12Native recall0.86
Jaccard0.80RMSD-
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
656 0.37101244232336955 -1.82493 -30.0003 7 9 0 0.00 0.00 - no Open
658 0.9830157296509761 -2.16191 -34.5301 11 11 0 0.00 0.00 - no Open
668 2.1721279981173005 -1.79816 -27.4368 10 13 12 0.86 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 -27.437kcal/mol
Ligand efficiency (LE) -1.9598kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -14.013
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 14HA

Physicochemical properties

Molecular weight 207.2Da
Lipinski: ≤ 500 Da
LogP (cLogP) -3.26
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 17.90kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 126.72kcal/mol
Minimised FF energy 108.82kcal/mol

SASA & burial

✓ computed
SASA (unbound) 395.8Ų
Total solvent-accessible surface area of free ligand
BSA total 359.3Ų
Buried surface area upon binding
BSA apolar 242.3Ų
Hydrophobic contacts buried
BSA polar 117.0Ų
Polar contacts buried
Fraction buried 90.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 67.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2018.1Ų
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 733.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)