Domain

Structures: Phycoerythrin alpha chain (IPR004228)

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.

1xg0  4lms  1xf6  1qgw 

CATH

CATH is a hierarchical classification of protein model structures.

3.90.510.10 

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.

d.184.1.1