Lineage for Fold b.21: Virus attachment protein
- Root: SCOP 1.63
Class b: All beta proteins [48724] (119 folds) 
Fold b.21: Virus attachment protein [49834] (1 superfamily)
sandwich, 10 strands in 2 sheets; greek-key
Superfamily:
b.21.1: Virus attachment protein [49835] (2 families) 
More info for Fold b.21: Virus attachment protein
Timeline for Fold b.21: Virus attachment protein:
- Fold b.21: Virus attachment protein 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 appears in SCOP 1.61
- Fold b.21: Virus attachment protein is called Fold b.21: Virus attachment protein globular domain in SCOP 1.65
- Fold b.21: Virus attachment protein appears in the current release, SCOPe 2.08, called Fold b.21: Virus attachment protein globular domain