Lineage for Superfamily a.188.1: PWI domain

1. Root: SCOPe 2.07

2. Class a: All alpha proteins [46456] (289 folds)

3. Fold a.188: PWI domain [101232] (1 superfamily) 4 helices; up-and-down bundle; topological similarity to the bromodomain-like and SAM domain-like folds

4. Superfamily a.188.1: PWI domain [101233] (1 family)