| C | PBP | e3mqhC1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| F | PBP | e3mqhF1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| E | PBP | e3mqhE1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| D | PBP | e3mqhD1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| B | PBP | e3mqhB1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |
| A | PBP | e3mqhA1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Immunoglobulin-related | T: PEBP-like | F: PBP | ECOD (v294.1) |