Lineage for Family b.1.18.19: SoxZ-like

1. Root: SCOP 1.73

2. Class b: All beta proteins [48724] (165 folds)

3. Fold b.1: Immunoglobulin-like beta-sandwich [48725] (27 superfamilies) sandwich; 7 strands in 2 sheets; greek-key some members of the fold have additional strands

4. Superfamily b.1.18: E set domains [81296] (20 families) "Early" Ig-like fold families possibly related to the immunoglobulin and/or fibronectin type III superfamilies

5. Family b.1.18.19: SoxZ-like [141027] (1 protein)