| L | PQQ_2 | e2xlbL1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Zn-dependent exopeptidases | T: Zn-dependent exopeptidases | F: PQQ_2 | ECOD (v294.1) |
| K | PQQ_2 | e2xlbK1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Zn-dependent exopeptidases | T: Zn-dependent exopeptidases | F: PQQ_2 | ECOD (v294.1) |
| J | PQQ_2 | e2xlbJ1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Zn-dependent exopeptidases | T: Zn-dependent exopeptidases | F: PQQ_2 | ECOD (v294.1) |
| I | PQQ_2 | e2xlbI1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Zn-dependent exopeptidases | T: Zn-dependent exopeptidases | F: PQQ_2 | ECOD (v294.1) |
| H | PQQ_2 | e2xlbH1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Zn-dependent exopeptidases | T: Zn-dependent exopeptidases | F: PQQ_2 | ECOD (v294.1) |
| G | PQQ_2 | e2xlbG1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Zn-dependent exopeptidases | T: Zn-dependent exopeptidases | F: PQQ_2 | ECOD (v294.1) |
| F | PQQ_2 | e2xlbF1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Zn-dependent exopeptidases | T: Zn-dependent exopeptidases | F: PQQ_2 | ECOD (v294.1) |
| E | PQQ_2 | e2xlbE1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Zn-dependent exopeptidases | T: Zn-dependent exopeptidases | F: PQQ_2 | ECOD (v294.1) |
| D | PQQ_2 | e2xlbD1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Zn-dependent exopeptidases | T: Zn-dependent exopeptidases | F: PQQ_2 | ECOD (v294.1) |
| C | PQQ_2 | e2xlbC1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Zn-dependent exopeptidases | T: Zn-dependent exopeptidases | F: PQQ_2 | ECOD (v294.1) |
| B | PQQ_2 | e2xlbB1 | A: a/b three-layered sandwiches | X: Lipocalins/Streptavidin | H: Zn-dependent exopeptidases | T: Zn-dependent exopeptidases | F: PQQ_2 | ECOD (v294.1) |
| A | Rubrerythrin | e2xlbA1 | A: a/b three-layered sandwiches | X: Thioredoxin-like | H: Thioredoxin-like | T: Thioredoxin-like | F: Rubrerythrin | ECOD (v294.1) |