| SCOP superfamily ID | superfamiily description | corresponding fold description |
|---|---|---|
| f.33.1 | Calcium ATPase, transmembrane domain M | Calcium ATPase, transmembrane domain M core: multihelical; consists of three transmembrane regions of 2, 2 and 6 helices, separated by cytoplasmic domains |
| f.54.1 | SNF-like | SNF-like 12 transmembrane helices; duplication: consists of two structurally similar halves |