| Role | Gene | Name | |
| 4-aminobutyraldehyde dehydrogenase (EC 1.2.1.19) | JDDGAC_04045 | patD | |
| 5'-methylthioadenosine nucleosidase (EC 3.2.2.16) | No genes | | |
| ABC transporter, periplasmic spermidine putrescine-binding protein PotD (TC 3.A.1.11.1) | JDDGAC_04065 | potD | |
| | JDDGAC_07095 | potD | |
| Agmatinase (EC 3.5.3.11) | JDDGAC_22945 | speB | |
| Agmatine deiminase (EC 3.5.3.12) | No genes | | |
| Agmatine/putrescine antiporter, associated with agmatine catabolism | No genes | | |
| Arginine decarboxylase (EC 4.1.1.19) | No genes | | |
| Arginine decarboxylase, catabolic (EC 4.1.1.19) | JDDGAC_16185 | adiA | |
| Arginine/agmatine antiporter | JDDGAC_16195 | adiC | |
| Arginine/ornithine antiporter | No genes | | |
| Arginine/ornithine antiporter ArcD | JDDGAC_02270 | ydgI | |
| Biosynthetic arginine decarboxylase (EC 4.1.1.19) | JDDGAC_22935 | speA | |
| Carbamate kinase (EC 2.7.2.2) | JDDGAC_11495 | arcC | |
| | JDDGAC_12615 | yahI | |
| Carboxynorspermidine decarboxylase, putative (EC 4.1.1.-) | No genes | | |
| Carboxynorspermidine dehydrogenase, putative (EC 1.1.1.-) | No genes | | |
| DNA-binding response regulator, LuxR family, near polyamine transporter | No genes | | |
| N-carbamoylputrescine amidase (3.5.1.53) | No genes | | |
| Ornithine decarboxylase (EC 4.1.1.17) | JDDGAC_10740 | speF | |
| | JDDGAC_22810 | speC | |
| Predicted chaperone lipoprotein YacC, potentially involved in protein secretion | JDDGAC_14055 | yacC | |
| Predicted polyamine sensor NspS, involved in biofilm formation | No genes | | |
| Probable spermidine/putrescine substrate binding protein in Mollicutes | No genes | | |
| Probable two-component sensor, near polyamine transporter | No genes | | |
| Putative GntR-family regulatory protein and aminotransferase near polyamine transporter | No genes | | |
| Putrescine ABC transporter putrescine-binding protein PotF (TC 3.A.1.11.2) | JDDGAC_09595 | potF | |
| Putrescine carbamoyltransferase (EC 2.1.3.6) | No genes | | |
| Putrescine transport ATP-binding protein PotA (TC 3.A.1.11.1) | JDDGAC_04060 | ydcT | |
| | JDDGAC_06740 | potA | |
| Putrescine transport ATP-binding protein PotG (TC 3.A.1.11.2) | JDDGAC_09590 | potG | |
| Putrescine transport system permease protein PotH (TC 3.A.1.11.2) | JDDGAC_09585 | potH | |
| Putrescine transport system permease protein PotI (TC 3.A.1.11.2) | JDDGAC_09580 | potI | |
| Putrescine-ornithine antiporter | No genes | | |
| Putrescine/proton symporter, putrescine/ornithine antiporter PotE | JDDGAC_10745 | potE | |
| S-adenosylmethionine decarboxylase proenzyme (EC 4.1.1.50), eukaryotic | No genes | | |
| S-adenosylmethionine decarboxylase proenzyme (EC 4.1.1.50), prokaryotic class 1A | JDDGAC_14065 | speD | |
| S-adenosylmethionine decarboxylase proenzyme (EC 4.1.1.50), prokaryotic class 1B | No genes | | |
| Spermidine N1-acetyltransferase (EC 2.3.1.57) | JDDGAC_02380 | speG | |
| Spermidine Putrescine ABC transporter permease component PotB (TC 3.A.1.11.1) | JDDGAC_04055 | potB | |
| | JDDGAC_06745 | potB | |
| Spermidine Putrescine ABC transporter permease component potC (TC_3.A.1.11.1) | JDDGAC_04050 | ydcV | |
| | JDDGAC_07090 | potC | |
| Spermidine synthase (EC 2.5.1.16) | JDDGAC_14060 | speE | |
| Transcriptional regulator of catabolic arginine decarboxylase (adiA) | JDDGAC_11415 | envY | |
| | JDDGAC_16190 | adiY | |
| Transcriptional regulator, MerR family, near polyamine transporter | No genes | | |
| Transcriptional regulator, TetR family, associated with agmatine catabolism | No genes | | |
| Transcriptional regulator, luxR family, associated with agmatine catabolism | No genes | | |