FAIRMol

Z29466466

Pose ID 14034 Compound 1114 Pose 476

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 Z29466466
PDB3K7O

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Likely artefact or unreliable pose
Binding strong Geometry medium Native strong SASA done
Strain ΔE
41.1 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.86, Jaccard 0.67, H-bond role recall 0.22
Burial
73%
Hydrophobic fit
75%
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-1.026 kcal/mol/HA) ✓ Good fit quality (FQ -9.90) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (73% SASA buried) ✓ Lipophilic contacts well-matched (75%) ✗ Extreme strain energy (41.1 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (7) ✗ Many internal clashes (15)
Score
-30.789
kcal/mol
LE
-1.026
kcal/mol/HA
Fit Quality
-9.90
FQ (Leeson)
HAC
30
heavy atoms
MW
422
Da
LogP
3.62
cLogP
Strain ΔE
41.1 kcal/mol
SASA buried
73%
Lipo contact
75% BSA apolar/total
SASA unbound
684 Ų
Apolar buried
372 Ų

Interaction summary

HB 8 HY 5 PI 3 CLASH 2

HB · H-bonds

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

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

Final rank2.093Score-30.789
Inter norm-0.804Intra norm-0.232
Top1000noExcludedno
Contacts16H-bonds8
Artifact reasongeometry warning; 15 clashes; 7 protein contact clashes; high strain Δ 41.1
Residues
ARG137 ARG140 ARG141 ASN103 HIS102 HIS138 ASP10 ASP45 CYS69 GLY70 HIS11 PRO12 SER43 SER71 TYR46 VAL44

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
Jaccard0.67RMSD-
HB strict2Strict recall0.17
HB same residue+role2HB role recall0.22
HB same residue2HB residue recall0.25

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
450 1.1457515134075142 -0.830626 -17.2162 2 17 0 0.00 0.00 - no Open
492 1.3411933317363585 -0.894811 -32.906 4 18 0 0.00 0.00 - no Open
476 2.0926937225473776 -0.804378 -30.7892 8 16 12 0.86 0.22 - no Current
434 3.19252741198437 -1.04683 -33.2615 6 17 0 0.00 0.00 - no Open

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -30.789kcal/mol
Ligand efficiency (LE) -1.0263kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.900
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 422.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.62
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 41.11kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 81.00kcal/mol
Minimised FF energy 39.89kcal/mol

SASA & burial

✓ computed
SASA (unbound) 684.4Ų
Total solvent-accessible surface area of free ligand
BSA total 497.0Ų
Buried surface area upon binding
BSA apolar 371.8Ų
Hydrophobic contacts buried
BSA polar 125.2Ų
Polar contacts buried
Fraction buried 72.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 74.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2273.0Ų
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 735.6Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)