Domain

Structures: HPr(Ser) kinase/phosphorylase, N-terminal (IPR011126)

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.

1knx  1ko7 

CATH

CATH is a hierarchical classification of protein model structures.

3.40.1390.20 

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.98.2.1