Active Site

Structures: DNA topoisomerase I, active site (IPR018521)

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.

1lpq  1rr8  1a31  1seu  1t8i  1tl8  1k4t  1a41  1a35  1nh3  1r49  1rrj  1ej9  1a36  1k4s  1sc7 

CATH

CATH is a hierarchical classification of protein model structures.

1.10.132.10  1.20.120.380 

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.2.8.1  d.163.1.2