Lineage for Superfamily b.68.1: Sialidases
- Root: SCOP 1.71
Class b: All beta proteins [48724] (149 folds) 
Fold b.68: 6-bladed beta-propeller [50938] (11 superfamilies)
consists of six 4-stranded beta-sheet motifs; meander
Superfamily b.68.1: Sialidases [50939] (2 families) 
Families:
b.68.1.1: Sialidases (neuraminidases) [50940] (9 proteins) 
b.68.1.2: Endo-alpha-sialidase [117276] (1 protein)
possibly related by the other family by circular permutation; includes extra N-terminal domain [dN: alpha/beta ] and insert domain [dI: beta-barrel, similar to the Reductase/isomerase/elongation factor common domain (scop_cf 50412)]
More info for Superfamily b.68.1: Sialidases
Timeline for Superfamily b.68.1: Sialidases:
- Superfamily b.68.1: Sialidases first appeared (with stable ids) in SCOP 1.55, called Superfamily b.68.1: Sialidases (neuraminidases)
- Superfamily b.68.1: Sialidases was called Superfamily b.68.1: Sialidases (neuraminidases) in SCOP 1.69
- Superfamily b.68.1: Sialidases appears in SCOP 1.73
- Superfamily b.68.1: Sialidases appears in the current release, SCOPe 2.08