Domain

Structures: RNA polymerase sigma factor 70, region 4 type 2 (IPR013249)

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.

3vep  1or7  4cxf  4qic  2h27  2o8x  3vfz  5fgm 

CATH

CATH is a hierarchical classification of protein model structures.

1.10.10.10  1.20.140.160 

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.4.13.2