Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0003824 | molecular_function | catalytic activity |
| A | 0004766 | molecular_function | spermidine synthase activity |
| A | 0005829 | cellular_component | cytosol |
| A | 0006596 | biological_process | polyamine biosynthetic process |
| A | 0008295 | biological_process | spermidine biosynthetic process |
| A | 0016740 | molecular_function | transferase activity |
| B | 0003824 | molecular_function | catalytic activity |
| B | 0004766 | molecular_function | spermidine synthase activity |
| B | 0005829 | cellular_component | cytosol |
| B | 0006596 | biological_process | polyamine biosynthetic process |
| B | 0008295 | biological_process | spermidine biosynthetic process |
| B | 0016740 | molecular_function | transferase activity |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 15 |
| Details | BINDING SITE FOR RESIDUE SAM A 501 |
| Chain | Residue |
| A | GLN48 |
| A | GLY158 |
| A | ASP176 |
| A | GLN209 |
| A | HOH503 |
| A | HOH695 |
| A | HOH696 |
| A | LEU67 |
| A | GLN72 |
| A | TYR81 |
| A | GLY103 |
| A | ASP126 |
| A | ILE127 |
| A | ASP128 |
| A | ASP157 |
| site_id | AC2 |
| Number of Residues | 16 |
| Details | BINDING SITE FOR RESIDUE SAM B 501 |
| Chain | Residue |
| B | GLN48 |
| B | LEU67 |
| B | GLN72 |
| B | TYR81 |
| B | HIS82 |
| B | GLY103 |
| B | ASP106 |
| B | ASP126 |
| B | ILE127 |
| B | ASP128 |
| B | ASP157 |
| B | GLY158 |
| B | ASP176 |
| B | HOH660 |
| B | HOH736 |
| B | HOH853 |
| site_id | AC3 |
| Number of Residues | 2 |
| Details | BINDING SITE FOR RESIDUE BME A 401 |
| Chain | Residue |
| A | CYS91 |
| A | ARG268 |
| site_id | AC4 |
| Number of Residues | 2 |
| Details | BINDING SITE FOR RESIDUE BME B 401 |
| Chain | Residue |
| B | CYS91 |
| B | ARG268 |
Functional Information from PROSITE/UniProt
| site_id | PS01330 |
| Number of Residues | 14 |
| Details | PABS_1 Polyamine biosynthesis (PABS) domain signature. VLIIGGGdGgvLrE |
| Chain | Residue | Details |
| A | VAL99-GLU112 | |
