| A | Peptidase_M18_2nd | e7u5hA1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: Peptidase_M18_2nd | ECOD (1.6) | 
 | A | Peptidase_M18_1st | e7u5hA2 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Zn-dependent exopeptidases (From Topology) | T: Zn-dependent exopeptidases | F: Peptidase_M18_1st | ECOD (1.6) | 
 | B | Peptidase_M18_2nd | e7u5hB1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: Peptidase_M18_2nd | ECOD (1.6) | 
 | B | Peptidase_M18_1st | e7u5hB2 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Zn-dependent exopeptidases (From Topology) | T: Zn-dependent exopeptidases | F: Peptidase_M18_1st | ECOD (1.6) | 
 | C | Peptidase_M18_2nd | e7u5hC1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: Peptidase_M18_2nd | ECOD (1.6) | 
 | C | Peptidase_M18_1st | e7u5hC2 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Zn-dependent exopeptidases (From Topology) | T: Zn-dependent exopeptidases | F: Peptidase_M18_1st | ECOD (1.6) | 
 | D | Peptidase_M18_2nd | e7u5hD1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: Peptidase_M18_2nd | ECOD (1.6) | 
 | D | Peptidase_M18_1st | e7u5hD2 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Zn-dependent exopeptidases (From Topology) | T: Zn-dependent exopeptidases | F: Peptidase_M18_1st | ECOD (1.6) | 
 | E | Peptidase_M18_2nd | e7u5hE2 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: Peptidase_M18_2nd | ECOD (1.6) | 
 | E | Peptidase_M18_1st | e7u5hE1 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Zn-dependent exopeptidases (From Topology) | T: Zn-dependent exopeptidases | F: Peptidase_M18_1st | ECOD (1.6) | 
 | F | Peptidase_M18_2nd | e7u5hF2 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: Peptidase_M18_2nd | ECOD (1.6) | 
 | F | Peptidase_M18_1st | e7u5hF1 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Zn-dependent exopeptidases (From Topology) | T: Zn-dependent exopeptidases | F: Peptidase_M18_1st | ECOD (1.6) | 
 | G | Peptidase_M18_2nd | e7u5hG1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: Peptidase_M18_2nd | ECOD (1.6) | 
 | G | Peptidase_M18_1st | e7u5hG2 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Zn-dependent exopeptidases (From Topology) | T: Zn-dependent exopeptidases | F: Peptidase_M18_1st | ECOD (1.6) | 
 | H | Peptidase_M18_2nd | e7u5hH1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: Peptidase_M18_2nd | ECOD (1.6) | 
 | H | Peptidase_M18_1st | e7u5hH2 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Zn-dependent exopeptidases (From Topology) | T: Zn-dependent exopeptidases | F: Peptidase_M18_1st | ECOD (1.6) | 
 | I | Peptidase_M18_2nd | e7u5hI1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: Peptidase_M18_2nd | ECOD (1.6) | 
 | I | Peptidase_M18_1st | e7u5hI2 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Zn-dependent exopeptidases (From Topology) | T: Zn-dependent exopeptidases | F: Peptidase_M18_1st | ECOD (1.6) | 
 | J | Peptidase_M18_2nd | e7u5hJ1 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: Peptidase_M18_2nd | ECOD (1.6) | 
 | J | Peptidase_M18_1st | e7u5hJ2 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Zn-dependent exopeptidases (From Topology) | T: Zn-dependent exopeptidases | F: Peptidase_M18_1st | ECOD (1.6) | 
 | K | Peptidase_M18_2nd | e7u5hK2 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: Peptidase_M18_2nd | ECOD (1.6) | 
 | K | Peptidase_M18_1st | e7u5hK1 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Zn-dependent exopeptidases (From Topology) | T: Zn-dependent exopeptidases | F: Peptidase_M18_1st | ECOD (1.6) | 
 | L | Peptidase_M18_2nd | e7u5hL2 | A: beta barrels | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: Peptidase_M18_2nd | ECOD (1.6) | 
 | L | Peptidase_M18_1st | e7u5hL1 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Zn-dependent exopeptidases (From Topology) | T: Zn-dependent exopeptidases | F: Peptidase_M18_1st | ECOD (1.6) |