Fold: CBS-domain

core: beta-alpha-beta(4); 2 layers: alpha/beta

Lineage:

1. Root: scop
2. Class: Alpha and beta proteins (a+b)
   Mainly antiparallel beta sheets (segregated alpha and beta regions)
3. Fold: CBS-domain
   core: beta-alpha-beta(4); 2 layers: alpha/beta

Superfamilies:

1. CBS-domain (1)
   1. CBS-domain (2)
      1. Type II inosine monophosphate dehydrogenase
         contains tandem repeat of two CBS domains inserted into the catalytic TIM-barrel domain
         1. Human (Homo sapiens) (1)
         2. Streptococcus pyogenes (1)