| L | Peptidase_M42 | e3kl9L1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: Peptidase_M42 | ECOD (1.6) |
| L | Peptidase_M20_1st | e3kl9L2 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Zn-dependent exopeptidases (From Topology) | T: Zn-dependent exopeptidases | F: Peptidase_M20_1st | ECOD (1.6) |
| K | Peptidase_M42 | e3kl9K1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: Peptidase_M42 | ECOD (1.6) |
| K | Peptidase_M20_1st | e3kl9K2 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Zn-dependent exopeptidases (From Topology) | T: Zn-dependent exopeptidases | F: Peptidase_M20_1st | ECOD (1.6) |
| J | Peptidase_M42 | e3kl9J1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: Peptidase_M42 | ECOD (1.6) |
| J | Peptidase_M20_1st | e3kl9J2 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Zn-dependent exopeptidases (From Topology) | T: Zn-dependent exopeptidases | F: Peptidase_M20_1st | ECOD (1.6) |
| I | Peptidase_M42 | e3kl9I1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: Peptidase_M42 | ECOD (1.6) |
| I | Peptidase_M20_1st | e3kl9I2 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Zn-dependent exopeptidases (From Topology) | T: Zn-dependent exopeptidases | F: Peptidase_M20_1st | ECOD (1.6) |
| H | Peptidase_M42 | e3kl9H1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: Peptidase_M42 | ECOD (1.6) |
| H | Peptidase_M20_1st | e3kl9H2 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Zn-dependent exopeptidases (From Topology) | T: Zn-dependent exopeptidases | F: Peptidase_M20_1st | ECOD (1.6) |
| G | Peptidase_M42 | e3kl9G1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: Peptidase_M42 | ECOD (1.6) |
| G | Peptidase_M20_1st | e3kl9G2 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Zn-dependent exopeptidases (From Topology) | T: Zn-dependent exopeptidases | F: Peptidase_M20_1st | ECOD (1.6) |
| F | Peptidase_M42 | e3kl9F1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: Peptidase_M42 | ECOD (1.6) |
| F | Peptidase_M20_1st | e3kl9F2 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Zn-dependent exopeptidases (From Topology) | T: Zn-dependent exopeptidases | F: Peptidase_M20_1st | ECOD (1.6) |
| E | Peptidase_M42 | e3kl9E1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: Peptidase_M42 | ECOD (1.6) |
| E | Peptidase_M20_1st | e3kl9E2 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Zn-dependent exopeptidases (From Topology) | T: Zn-dependent exopeptidases | F: Peptidase_M20_1st | ECOD (1.6) |
| D | Peptidase_M42 | e3kl9D1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: Peptidase_M42 | ECOD (1.6) |
| D | Peptidase_M20_1st | e3kl9D2 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Zn-dependent exopeptidases (From Topology) | T: Zn-dependent exopeptidases | F: Peptidase_M20_1st | ECOD (1.6) |
| C | Peptidase_M42 | e3kl9C1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: Peptidase_M42 | ECOD (1.6) |
| C | Peptidase_M20_1st | e3kl9C2 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Zn-dependent exopeptidases (From Topology) | T: Zn-dependent exopeptidases | F: Peptidase_M20_1st | ECOD (1.6) |
| B | Peptidase_M42 | e3kl9B1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: Peptidase_M42 | ECOD (1.6) |
| B | Peptidase_M20_1st | e3kl9B2 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Zn-dependent exopeptidases (From Topology) | T: Zn-dependent exopeptidases | F: Peptidase_M20_1st | ECOD (1.6) |
| A | Peptidase_M42 | e3kl9A1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: Peptidase_M42 | ECOD (1.6) |
| A | Peptidase_M20_1st | e3kl9A2 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Zn-dependent exopeptidases (From Topology) | T: Zn-dependent exopeptidases | F: Peptidase_M20_1st | ECOD (1.6) |