| G7K2D1 | n/a | 6bq6 | TER | A | 402 | e6bq6A1 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| G7K2D1 | n/a | 6bq6 | TER | A | 402 | e6bq6A2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |
| G7K2D1 | n/a | 6bq6 | TER | B | 402 | e6bq6B1 | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermidine synthase tetramerisation domain | Spermine_synt_N |
| G7K2D1 | n/a | 6bq6 | TER | B | 402 | e6bq6B2 | Rossmann-like | Rossmann-related | S-adenosyl-L-methionine-dependent methyltransferases | Spermine_synth |