Domain

Structures: ATPase domain (IPR011579)

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.

2fna  2qen 

CATH

CATH is a hierarchical classification of protein model structures.

1.10.8.60  3.40.50.300 

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.

c.37.1.20