Family

Structures: Proteasome activator PA28 (IPR009077)

PDBe

The Protein Data Bank (PDB) is a repository for the 3-D structural data of large biological molecules, such as proteins and nucleic acids.

1avo 

CATH

CATH is a hierarchical classification of protein model structures.

1.20.120.180  1.20.5.120 

SCOP

The Structural Classification of Proteins (SCOP) database is a largely manual classification of protein structural domains based on similarities of their amino acid sequences and three-dimensional structures.

a.24.8.1