Active Site

Structures: DNA topoisomerase I, active site (IPR018521)


The Protein Data Bank (PDB) is a repository for the 3-D structural data of large biological molecules, such as proteins and nucleic acids.

1sc7  2h7g  3igc  1k4s  1r49  1lpq  1ej9  1t8i  2h7f  1rr8  1a36  1a31  1a35  1nh3  1tl8  1rrj  2b9s  1seu  1a41  1k4t 


CATH is a hierarchical classification of protein model structures. 


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