X-ray diffraction
1.5Å resolution

Crystal structure of Dionain-1, the major endopeptidase in the Venus flytrap digestive juice


Function and Biology Details

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Dionain-1 Chain: A
Molecule details ›
Chain: A
Length: 222 amino acids
Theoretical weight: 23.04 KDa
Source organism: Dionaea muscipula
Expression system: Komagataella pastoris
  • Canonical: A0A0E3GLN3 (Residues: 131-352; Coverage: 69%)
Sequence domains: Papain family cysteine protease
Structure domains: Cysteine proteinases

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID23-1
Spacegroup: C2
Unit cell:
a: 73.85Å b: 47.79Å c: 57.79Å
α: 90° β: 92.44° γ: 90°
R R work R free
0.158 0.158 0.172
Expression system: Komagataella pastoris