Fold: Protozoan pheromone proteins

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

Lineage:

1. Root: scop
2. Class: All alpha proteins
3. Fold: Protozoan pheromone proteins
   3 helices; bundle, closed, left-handed twist, up-and-down

Superfamilies:

1. Protozoan pheromone proteins (1)
   1. Protozoan pheromone proteins (5)
      1. ER-1
         1. Euplotes raikovi (2)
      2. ER-2
         1. Euplotes raikovi (1)
      3. ER-10
         1. Euplotes raikovi (1)
      4. ER-11
         1. Euplotes raikovi (1)
      5. ER-22
         1. Euplotes raikovi (1)