| A | Spa1_C | e6apjA1 | A: a/b three-layered sandwiches | X: Protein kinase/SAICAR synthase/ATP-grasp | H: Protein kinase/SAICAR synthase/ATP-grasp | T: Undecaprenyl diphosphate synthase | F: Spa1_C | ECOD (v294.1) |
| B | ATP-synt_Eps | e6apjB1 | A: a/b three-layered sandwiches | X: Periplasmic binding protein-like II | H: Rubredoxin-related | T: Tetrapyrrole methylase C-terminal domain | F: ATP-synt_Eps | ECOD (v294.1) |
| C | ATP-synt_Eps | e6apjC1 | A: a/b three-layered sandwiches | X: Periplasmic binding protein-like II | H: Rubredoxin-related | T: Tetrapyrrole methylase C-terminal domain | F: ATP-synt_Eps | ECOD (v294.1) |
| D | ATP-synt_Eps | e6apjD1 | A: a/b three-layered sandwiches | X: Periplasmic binding protein-like II | H: Rubredoxin-related | T: Tetrapyrrole methylase C-terminal domain | F: ATP-synt_Eps | ECOD (v294.1) |
| E | ATP-synt_Eps | e6apjE1 | A: a/b three-layered sandwiches | X: Periplasmic binding protein-like II | H: Rubredoxin-related | T: Tetrapyrrole methylase C-terminal domain | F: ATP-synt_Eps | ECOD (v294.1) |
| F | ATP-synt_Eps | e6apjF1 | A: a/b three-layered sandwiches | X: Periplasmic binding protein-like II | H: Rubredoxin-related | T: Tetrapyrrole methylase C-terminal domain | F: ATP-synt_Eps | ECOD (v294.1) |