| Z | SIR2 | e4n3eZ1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| Y | SIR2 | e4n3eY1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| X | SIR2 | e4n3eX1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| W | SIR2 | e4n3eW1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| V | SIR2 | e4n3eV1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| U | SIR2 | e4n3eU1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| T | SIR2 | e4n3eT1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| S | SIR2 | e4n3eS1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| R | SIR2 | e4n3eR1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| Q | SIR2 | e4n3eQ1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| P | SIR2 | e4n3eP1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| O | SIR2 | e4n3eO1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| N | SIR2 | e4n3eN1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| M | SIR2 | e4n3eM1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| L | SIR2 | e4n3eL1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| K | SIR2 | e4n3eK1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| J | SIR2 | e4n3eJ1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| I | SIR2 | e4n3eI1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| H | SIR2 | e4n3eH1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| G | SIR2 | e4n3eG1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| F | SIR2 | e4n3eF1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| E | SIR2 | e4n3eE1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| D | SIR2 | e4n3eD1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| C | SIR2 | e4n3eC1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| BA [auth b] | SIR2 | e4n3eb1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| B | SIR2 | e4n3eB1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| AA [auth a] | SIR2 | e4n3ea1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |
| A | SIR2 | e4n3eA1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: SIR2 | ECOD (v294.1) |