Lineage for Fold c.6: 7-stranded beta/alpha barrel
- Root: SCOPe 2.01
Class c: Alpha and beta proteins (a/b) [51349] (147 folds) 
Fold c.6: 7-stranded beta/alpha barrel [51988] (3 superfamilies)
variant of beta/alpha barrel; parallel beta-sheet barrel, closed, n=7, S=8; strand order 1234567; some members may have fewer strands
Superfamilies:
c.6.1: Glycosyl hydrolases family 6, cellulases [51989] (1 family) 
c.6.2: Glycoside hydrolase/deacetylase [88713] (8 families)
in the different families beta-barrels are similarly distorted but may vary in the number of strands
c.6.3: PHP domain-like [89550] (2 families)
More info for Fold c.6: 7-stranded beta/alpha barrel
Timeline for Fold c.6: 7-stranded beta/alpha barrel:
- Fold c.6: 7-stranded beta/alpha barrel first appeared (with stable ids) in SCOP 1.55, called Fold c.6: Cellulases
- Fold c.6: 7-stranded beta/alpha barrel appears in SCOP 1.75
- Fold c.6: 7-stranded beta/alpha barrel appears in SCOPe 2.02
- Fold c.6: 7-stranded beta/alpha barrel appears in the current release, SCOPe 2.08