Lineage for Fold b.21: Virus attachment protein globular domain
- Root: SCOPe 2.08
Class b: All beta proteins [48724] (180 folds) 
Fold b.21: Virus attachment protein globular domain [49834] (1 superfamily)
sandwich, 10 strands in 2 sheets; greek-key
Superfamily:
b.21.1: Virus attachment protein globular domain [49835] (4 families) 
More info for Fold b.21: Virus attachment protein globular domain
Timeline for Fold b.21: Virus attachment protein globular domain:
- Fold b.21: Virus attachment protein globular domain first appeared (with stable ids) in SCOP 1.55, called Fold b.21: Adenovirus fiber protein head domain (knob domain)
- Fold b.21: Virus attachment protein globular domain appears in SCOPe 2.07