| Q9ZUB3 | n/a | 6o65 | S4M | A | 401 | e6o65A1 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q9ZUB3 | n/a | 6o65 | S4M | A | 401 | e6o65A2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q9ZUB3 | n/a | 6o65 | S4M | B | 401 | e6o65B1 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q9ZUB3 | n/a | 6o65 | S4M | B | 401 | e6o65B2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q9ZUB3 | n/a | 6o65 | S4M | C | 401 | e6o65C1 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q9ZUB3 | n/a | 6o65 | S4M | C | 401 | e6o65C2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q9ZUB3 | n/a | 6o65 | S4M | D | 401 | e6o65D1 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q9ZUB3 | n/a | 6o65 | S4M | D | 401 | e6o65D2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q9ZUB3 | n/a | 6o65 | S4M | E | 401 | e6o65E1 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q9ZUB3 | n/a | 6o65 | S4M | E | 401 | e6o65E2 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q9ZUB3 | n/a | 6o65 | S4M | F | 401 | e6o65F1 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q9ZUB3 | n/a | 6o65 | S4M | F | 401 | e6o65F2 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q9ZUB3 | n/a | 6o65 | S4M | G | 401 | e6o65G1 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q9ZUB3 | n/a | 6o65 | S4M | G | 401 | e6o65G2 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q9ZUB3 | n/a | 6o65 | S4M | H | 401 | e6o65H1 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q9ZUB3 | n/a | 6o65 | S4M | H | 401 | e6o65H2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |