| Q8II73 | DB02282 | 2hte | MTA | A | 4000 | e2hteA2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q8II73 | DB02282 | 2hte | MTA | A | 4000 | e2hteA3 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q8II73 | DB02282 | 2hte | MTA | B | 4001 | e2hteB2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q8II73 | DB02282 | 2hte | MTA | B | 4001 | e2hteB3 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q8II73 | DB02282 | 2hte | MTA | C | 4002 | e2hteC2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q8II73 | DB02282 | 2hte | MTA | C | 4002 | e2hteC3 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q8II73 | DB02282 | 3b7p | MTA | A | 401 | e3b7pA2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q8II73 | DB02282 | 3b7p | MTA | A | 401 | e3b7pA3 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q8II73 | DB02282 | 3b7p | MTA | B | 402 | e3b7pB2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q8II73 | DB02282 | 3b7p | MTA | B | 402 | e3b7pB3 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q8II73 | DB02282 | 3b7p | MTA | C | 403 | e3b7pC2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q8II73 | DB02282 | 3b7p | MTA | C | 403 | e3b7pC3 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q8II73 | DB02282 | 3rie | MTA | A | 401 | e3rieA2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q8II73 | DB02282 | 3rie | MTA | A | 401 | e3rieA3 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q8II73 | DB02282 | 3rie | MTA | B | 401 | e3rieB2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q8II73 | DB02282 | 3rie | MTA | B | 401 | e3rieB3 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q8II73 | DB02282 | 3rie | MTA | C | 401 | e3rieC2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q8II73 | DB02282 | 3rie | MTA | C | 401 | e3rieC3 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q8II73 | DB02282 | 4bp1 | MTA | A | 501 | e4bp1A1 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q8II73 | DB02282 | 4bp1 | MTA | A | 501 | e4bp1A2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q8II73 | DB02282 | 4bp1 | MTA | B | 501 | e4bp1B1 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q8II73 | DB02282 | 4bp1 | MTA | B | 501 | e4bp1B2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q8II73 | DB02282 | 4bp1 | MTA | C | 501 | e4bp1C1 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q8II73 | DB02282 | 4bp1 | MTA | C | 501 | e4bp1C2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q8II73 | DB02282 | 4cxm | MTA | A | 540 | e4cxmA1 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q8II73 | DB02282 | 4cxm | MTA | A | 540 | e4cxmA2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q8II73 | DB02282 | 4cxm | MTA | B | 540 | e4cxmB1 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q8II73 | DB02282 | 4cxm | MTA | B | 540 | e4cxmB2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q8II73 | DB02282 | 4cxm | MTA | C | 540 | e4cxmC1 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q8II73 | DB02282 | 4cxm | MTA | C | 540 | e4cxmC2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q8II73 | DB02282 | 4uoe | MTA | A | 401 | e4uoeA1 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q8II73 | DB02282 | 4uoe | MTA | A | 401 | e4uoeA2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q8II73 | DB02282 | 4uoe | MTA | B | 401 | e4uoeB1 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q8II73 | DB02282 | 4uoe | MTA | B | 401 | e4uoeB2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q8II73 | DB02282 | 4uoe | MTA | C | 401 | e4uoeC1 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q8II73 | DB02282 | 4uoe | MTA | C | 401 | e4uoeC2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q8II73 | DB02282 | 6hy1 | MTA | A | 402 | e6hy1A1 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q8II73 | DB02282 | 6hy1 | MTA | A | 402 | e6hy1A2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q8II73 | DB02282 | 6hy1 | MTA | B | 402 | e6hy1B1 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q8II73 | DB02282 | 6hy1 | MTA | B | 402 | e6hy1B2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q8II73 | DB02282 | 6hy1 | MTA | C | 402 | e6hy1C1 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q8II73 | DB02282 | 6hy1 | MTA | C | 402 | e6hy1C2 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |