| Q4DA73 | n/a | 5y4p | 8QO | A | 302 | e5y4pA1 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q4DA73 | n/a | 5y4p | 8QO | A | 302 | e5y4pA2 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q4DA73 | n/a | 5y4p | 8QO | A | 302 | e5y4pB2 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q4DA73 | n/a | 5y4p | 8QO | B | 302 | e5y4pA2 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q4DA73 | n/a | 5y4p | 8QO | B | 302 | e5y4pB1 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q4DA73 | n/a | 5y4p | 8QO | B | 302 | e5y4pB2 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q4DA73 | n/a | 5y4p | 8QO | C | 302 | e5y4pC1 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| Q4DA73 | n/a | 5y4p | 8QO | C | 302 | e5y4pC2 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q4DA73 | n/a | 5y4p | 8QO | C | 302 | e5y4pD1 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q4DA73 | n/a | 5y4p | 8QO | D | 302 | e5y4pC2 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q4DA73 | n/a | 5y4p | 8QO | D | 302 | e5y4pD1 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| Q4DA73 | n/a | 5y4p | 8QO | D | 302 | e5y4pD2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |