| SCOP superfamily ID | superfamiily description | corresponding fold description |
|---|---|---|
| b.76.1 | Outer surface protein 21 stranded sheet partly folded upon itself at the ends ! | open-sided beta-meander single sheet formed by beta-hairpin repeats; exposed on both sides in the middle |
| f.11.1 | Anthrax protective antigen | Anthrax protective antigen 4 domains; I (res. 14-225) and II (226-487) are beta-sandwiches of similar gamma-crystallin like topologies; III (488-594) has a beta-grasp like fold; IV (595-735) has an Ig-like fold |