| SCOP superfamily ID | superfamiily description | corresponding fold description |
|---|---|---|
| d.92.2 | beta-N-acetylhexosaminidase-like domain contains similar fold but lacks its catalytic centre ! | Zincin-like contains mixed beta sheet with connection over free side of the sheet |
| c.91.1 | PEP carboxykinase-like | PEP carboxykinase-like contains a P-loop NTP-binding motif; mixed beta-sheet folds into a barrel-like structure with helices packed on one side |