Fold: Bacterial immunoglobulin/albumin-binding domains

3 helices; bundle, closed, left-handed twist; up-and-down

Lineage:

1. Root: scop
2. Class: All alpha proteins
3. Fold: Bacterial immunoglobulin/albumin-binding domains
   3 helices; bundle, closed, left-handed twist; up-and-down

Superfamilies:

1. Bacterial immunoglobulin/albumin-binding domains (2)
   1. Immunoglobulin-binding protein A modules (1)
   2. An albumin-binding domain (1)