FAIRMol

Z57122620

Pose ID 14025 Compound 5033 Pose 467

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 Z57122620
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 high Native strong SASA done
Strain ΔE
8.6 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.86, Jaccard 0.75, H-bond role recall 0.44
Burial
83%
Hydrophobic fit
81%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.302 kcal/mol/HA) ✓ Good fit quality (FQ -11.49) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (83% SASA buried) ✓ Lipophilic contacts well-matched (81%) ✗ Moderate strain (8.6 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (8)
Score
-29.950
kcal/mol
LE
-1.302
kcal/mol/HA
Fit Quality
-11.49
FQ (Leeson)
HAC
23
heavy atoms
MW
320
Da
LogP
4.17
cLogP
Final rank
1.8613
rank score
Inter norm
-1.171
normalised
Contacts
14
H-bonds 8
Strain ΔE
8.6 kcal/mol
SASA buried
83%
Lipo contact
81% BSA apolar/total
SASA unbound
494 Ų
Apolar buried
332 Ų

Interaction summary

HBD 2 HBA 5 HY 3 PI 3 CLASH 1

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. 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: 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
Jaccard0.75RMSD-
HB strict5Strict recall0.42
HB same residue+role4HB role recall0.44
HB same residue4HB residue recall0.50

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
423 1.5616317826082655 -1.35509 -30.5334 7 18 0 0.00 0.00 - no Open
467 1.861307693211867 -1.17056 -29.9502 8 14 12 0.86 0.44 - 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 -29.950kcal/mol
Ligand efficiency (LE) -1.3022kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -11.493
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 23HA

Physicochemical properties

Molecular weight 320.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.17
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 8.59kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 119.46kcal/mol
Minimised FF energy 110.86kcal/mol

SASA & burial

✓ computed
SASA (unbound) 494.3Ų
Total solvent-accessible surface area of free ligand
BSA total 411.7Ų
Buried surface area upon binding
BSA apolar 331.8Ų
Hydrophobic contacts buried
BSA polar 79.8Ų
Polar contacts buried
Fraction buried 83.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 80.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2100.5Ų
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 796.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)