Fold: RuBisCO, small subunit

alpha-beta(2)-alpha-beta(2); 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: RuBisCO, small subunit
   alpha-beta(2)-alpha-beta(2); 2 layers, alpha/beta

Superfamilies:

1. RuBisCO, small subunit (1)
   1. RuBisCO, small subunit (5)
      1. Ribulose 1,5-bisphosphate carboxylase-oxygenase
         1. Tobacco (Nicotiana tabacum), variant turkish samsun (5)
         2. Spinach (Spinacia oleracea) (8)
         3. Galdieria partita (1)
         4. Alcaligenes eutrophus (1)
         5. Synechococcus sp., strain pcc 6301 (2)