Lineage for Family c.30.1.6: Lysine biosynthesis enzyme LysX, N-terminal domain

1. Root: SCOP 1.69

2. Class c: Alpha and beta proteins (a/b) [51349] (136 folds)

3. Fold c.30: PreATP-grasp domain [52439] (1 superfamily) 3 layers: a/b/a; parallel or mixed beta-sheet of 4 to 6 strands possible rudiment form of Rossmann-fold domain

4. Superfamily c.30.1: PreATP-grasp domain [52440] (6 families) precedes the ATP-grasp domain common to all superfamily members, can contain a substrate-binding function

5. Family c.30.1.6: Lysine biosynthesis enzyme LysX, N-terminal domain [102284] (1 protein)