Fold: Toxins' membrane translocation domains

multi-helical domains of various folds which is thought to unfold in the membrane

Lineage:

1. Root: scop
2. Class: Membrane and cell surface proteins and peptides
   Does not include proteins in the immune system
3. Fold: Toxins' membrane translocation domains
   multi-helical domains of various folds which is thought to unfold in the membrane

Superfamilies:

1. Colicin (1)
2. Diphtheria toxin, middle domain (1)
3. delta-Endotoxin (insectocide), N-terminal domain (1)
4. Bcl-2 inhibitors of programmed cell death (1)
   PROVISIONAL CLASSIFICATION, based on structural similarity to the diphtheria toxin domain
5. Exotoxin A, middle domain (1)