Fold: Thioesterase/thiol ester dehydrase-isomerase

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: Thioesterase/thiol ester dehydrase-isomerase
   core: beta-alpha-beta(4); 2 layers: alpha/beta

Superfamilies:

1. Thioesterase/thiol ester dehydrase-isomerase (3)
   1. 4-hydroxybenzoyl-CoA thioesterase (1)
   2. beta-Hydroxydecanol thiol ester dehydrase (1)
      contains two additional beta-strands in the N-terminal extension
   3. Thioesterase II (TesB) (1)
      duplication: consists of two domain of this fold