Fold: DNA glycosylase

3 layers, a/b/a; core: parallel beta-sheet of 4 strands, order 2134

Lineage:

1. Root: scop
2. Class: Alpha and beta proteins (a/b)
   Mainly parallel beta sheets (beta-alpha-beta units)
3. Fold: DNA glycosylase
   3 layers, a/b/a; core: parallel beta-sheet of 4 strands, order 2134

Superfamilies:

1. DNA glycosylase (2)
   1. Uracil-DNA glycosylase (3)
   2. G:T/U mismatch-specific DNA glycosylase (1)