Domain

Structures: Lon, substrate-binding domain (IPR003111)

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.

3ljc  1zbo  3m65  2ane 

CATH

CATH is a hierarchical classification of protein model structures.

1.10.4060.10  2.30.130.40 

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.

b.122.1.10