Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0003824 | molecular_function | catalytic activity |
| A | 0004766 | molecular_function | spermidine synthase activity |
| A | 0006596 | biological_process | polyamine biosynthetic process |
| A | 0016740 | molecular_function | transferase activity |
| B | 0003824 | molecular_function | catalytic activity |
| B | 0004766 | molecular_function | spermidine synthase activity |
| B | 0006596 | biological_process | polyamine biosynthetic process |
| B | 0016740 | molecular_function | transferase activity |
| C | 0003824 | molecular_function | catalytic activity |
| C | 0004766 | molecular_function | spermidine synthase activity |
| C | 0006596 | biological_process | polyamine biosynthetic process |
| C | 0016740 | molecular_function | transferase activity |
| D | 0003824 | molecular_function | catalytic activity |
| D | 0004766 | molecular_function | spermidine synthase activity |
| D | 0006596 | biological_process | polyamine biosynthetic process |
| D | 0016740 | molecular_function | transferase activity |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 17 |
| Details | binding site for residue S4M A 301 |
| Chain | Residue |
| A | GLN40 |
| A | ILE119 |
| A | ASP120 |
| A | VAL123 |
| A | ASP149 |
| A | GLY150 |
| A | ASP168 |
| A | THR169 |
| A | THR170 |
| A | LEU59 |
| A | GLN64 |
| A | TYR73 |
| A | HIS74 |
| A | GLY95 |
| A | ASP98 |
| A | VAL117 |
| A | ASP118 |
| site_id | AC2 |
| Number of Residues | 19 |
| Details | binding site for residue S4M B 301 |
| Chain | Residue |
| B | GLN40 |
| B | GLN64 |
| B | TYR73 |
| B | HIS74 |
| B | GLY95 |
| B | ASP98 |
| B | VAL117 |
| B | ASP118 |
| B | ILE119 |
| B | ASP120 |
| B | VAL123 |
| B | ASP149 |
| B | GLY150 |
| B | ASP168 |
| B | THR169 |
| B | THR170 |
| B | PRO175 |
| B | ALA176 |
| B | LEU179 |
| site_id | AC3 |
| Number of Residues | 9 |
| Details | binding site for residue 4K2 B 302 |
| Chain | Residue |
| A | TRP53 |
| A | PRO235 |
| A | THR236 |
| B | GLU14 |
| B | TRP19 |
| B | GLN22 |
| B | MET24 |
| B | PRO238 |
| B | CYS239 |
| site_id | AC4 |
| Number of Residues | 17 |
| Details | binding site for residue S4M C 301 |
| Chain | Residue |
| C | GLN40 |
| C | LEU59 |
| C | GLN64 |
| C | TYR73 |
| C | HIS74 |
| C | GLY95 |
| C | ASP98 |
| C | VAL117 |
| C | ASP118 |
| C | ILE119 |
| C | ASP120 |
| C | VAL123 |
| C | ASP149 |
| C | GLY150 |
| C | ASP168 |
| C | THR169 |
| C | THR170 |
| site_id | AC5 |
| Number of Residues | 17 |
| Details | binding site for residue S4M D 301 |
| Chain | Residue |
| D | GLN40 |
| D | LEU59 |
| D | GLN64 |
| D | TYR73 |
| D | HIS74 |
| D | GLY95 |
| D | ASP98 |
| D | VAL117 |
| D | ASP118 |
| D | ILE119 |
| D | ASP120 |
| D | VAL123 |
| D | ASP149 |
| D | GLY150 |
| D | ASP168 |
| D | THR169 |
| D | PRO175 |
| site_id | AC6 |
| Number of Residues | 9 |
| Details | binding site for residue 4K2 D 302 |
| Chain | Residue |
| C | MET24 |
| C | PRO235 |
| D | GLU14 |
| D | TRP19 |
| D | GLN22 |
| D | MET24 |
| D | TYR237 |
| D | PRO238 |
| D | CYS239 |
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 | VAL91-GLU104 | |
