PDBe 2b1n

X-ray diffraction
2.4Å resolution

Crystal structure of a papain-fold protein without the catalytic cysteine from seeds of Pachyrhizus erosus


Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Papain-like protein SPE31 Chain: A
Molecule details ›
Chain: A
Length: 246 amino acids
Theoretical weight: 27.12 KDa
Source organism: Pachyrhizus erosus
  • Canonical: Q3Y6U7 (Residues: 1-246; Coverage: 100%)
Gene name: spe31
Sequence domains: Papain family cysteine protease
Structure domains: Cysteine proteinases
peptide (LYS)(ALA)(SER)(VAL)(GLY) Chain: B
Molecule details ›
Chain: B
Length: 5 amino acids
Theoretical weight: 462 Da
Source organism: Synthetic construct
Expression system: Not provided

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
Spacegroup: P41212
Unit cell:
a: 61.358Å b: 61.358Å c: 143.988Å
α: 90° β: 90° γ: 90°
R R work R free
0.209 0.206 0.267
Expression system: Not provided