Lineage for Superfamily c.97.2: AICAR transformylase domain of bifunctional purine biosynthesis enzyme ATIC

1. Root: SCOP 1.67

2. Class c: Alpha and beta proteins (a/b) [51349] (130 folds)

3. Fold c.97: Cytidine deaminase-like [53926] (3 superfamilies) core: alpha-beta(2)-(alpha-beta)2; 3 layers (a/b/a); mixed beta-sheet of 4 strands, order 2134; strand 2 is antiparallel to the rest

4. Superfamily c.97.2: AICAR transformylase domain of bifunctional purine biosynthesis enzyme ATIC [64197] (1 family) duplication: consists of two domains of this fold with extra secondary structures within and in between the two core motifs