Family: TnsA endonuclease, N-terminal domain

Lineage:

1. Root: scop
2. Class: Alpha and beta proteins (a/b)
   Mainly parallel beta sheets (beta-alpha-beta units)
3. Fold: Restriction endonuclease-like
   core: 3 layers, a/b/a; mixed beta-sheet of 5 strands, order 12345; strands 2 &, in some families, 5 are antiparallel to the rest
4. Superfamily: Restriction endonuclease-like
5. Family: TnsA endonuclease, N-terminal domain

Protein Domains:

1. TnsA endonuclease, N-terminal domain
   a catalytic component of the tn7 transposition system
   1. Escherichia coli (1)