Lineage for Family b.80.1.8: iota-carrageenase

1. Root: SCOP 1.65

2. Class b: All beta proteins [48724] (126 folds)

3. Fold b.80: Single-stranded right-handed beta-helix [51125] (5 superfamilies) superhelix with each turn made by 3 strands with short links duplication: turns of the helix are structural repeats

4. Superfamily b.80.1: Pectin lyase-like [51126] (8 families)

5. Family b.80.1.8: iota-carrageenase [69333] (1 protein) this is a repeat family; one repeat unit is 1h80 A:181-215 found in domain