| O | Metallophos | e6r21O1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: Metallophos | ECOD (v294.1) |
| V | Metallophos | e6r21V1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: Metallophos | ECOD (v294.1) |
| W | Metallophos | e6r21W1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: Metallophos | ECOD (v294.1) |
| X | Metallophos | e6r21X1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: Metallophos | ECOD (v294.1) |
| U | Metallophos | e6r21U1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: Metallophos | ECOD (v294.1) |
| T | Metallophos | e6r21T1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: Metallophos | ECOD (v294.1) |
| S | Metallophos | e6r21S1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: Metallophos | ECOD (v294.1) |
| R | Metallophos | e6r21R1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: Metallophos | ECOD (v294.1) |
| Q | Metallophos | e6r21Q1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: Metallophos | ECOD (v294.1) |
| P | Metallophos | e6r21P1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: Metallophos | ECOD (v294.1) |
| N | Proteasome | e6r21N1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: Ntn | T: Proteasome subunits | F: Proteasome | ECOD (v294.1) |
| M | Metallophos | e6r21M1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: Metallophos | ECOD (v294.1) |
| D | Metallophos | e6r21D1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: Metallophos | ECOD (v294.1) |
| K | Metallophos | e6r21K1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: Metallophos | ECOD (v294.1) |
| L | Metallophos | e6r21L1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: Metallophos | ECOD (v294.1) |
| J | Metallophos | e6r21J1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: Metallophos | ECOD (v294.1) |
| I | Metallophos | e6r21I1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: Metallophos | ECOD (v294.1) |
| H | Metallophos | e6r21H1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: Metallophos | ECOD (v294.1) |
| G | Metallophos | e6r21G1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: Metallophos | ECOD (v294.1) |
| F | Metallophos | e6r21F1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: Metallophos | ECOD (v294.1) |
| E | Metallophos | e6r21E1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: Metallophos | ECOD (v294.1) |
| C | Metallophos | e6r21C1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: Metallophos | ECOD (v294.1) |
| B | Metallophos | e6r21B1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: Metallophos | ECOD (v294.1) |
| A | Metallophos | e6r21A1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: DUF1107-like | T: DUF1107-like | F: Metallophos | ECOD (v294.1) |