| Role | Gene | Name | |
|---|
| 4-aminobutyraldehyde dehydrogenase (EC 1.2.1.19) | No genes | | |
| 5'-methylthioadenosine nucleosidase (EC 3.2.2.16) | No genes | | |
| ABC transporter, periplasmic spermidine putrescine-binding protein PotD (TC 3.A.1.11.1) | Psest_3657 | | |
| Agmatinase (EC 3.5.3.11) | No genes | | |
| Agmatine deiminase (EC 3.5.3.12) | Psest_4291 | | |
| Agmatine/putrescine antiporter, associated with agmatine catabolism | No genes | | |
| Arginine decarboxylase (EC 4.1.1.19) | Psest_3350 | | |
| Arginine decarboxylase, catabolic (EC 4.1.1.19) | No genes | | |
| Arginine/agmatine antiporter | No genes | | |
| Arginine/ornithine antiporter | No genes | | |
| Arginine/ornithine antiporter ArcD | Psest_0230 | | |
| | Psest_0273 | | |
| | Psest_2808 | | |
| Biosynthetic arginine decarboxylase (EC 4.1.1.19) | Psest_3366 | | |
| Carbamate kinase (EC 2.7.2.2) | Psest_0270 | | |
| 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 | Psest_3659 | | |
| N-carbamoylputrescine amidase (3.5.1.53) | Psest_4290 | | |
| Ornithine decarboxylase (EC 4.1.1.17) | Psest_3350 | | |
| Predicted chaperone lipoprotein YacC, potentially involved in protein secretion | No genes | | |
| Predicted polyamine sensor NspS, involved in biofilm formation | Psest_3900 | | |
| Probable spermidine/putrescine substrate binding protein in Mollicutes | No genes | | |
| Probable two-component sensor, near polyamine transporter | Psest_3660 | | |
| 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) | Psest_4283 | | |
| | Psest_4284 | | |
| Putrescine carbamoyltransferase (EC 2.1.3.6) | No genes | | |
| Putrescine transport ATP-binding protein PotA (TC 3.A.1.11.1) | Psest_3658 | | |
| Putrescine transport ATP-binding protein PotG (TC 3.A.1.11.2) | Psest_4282 | | |
| Putrescine transport system permease protein PotH (TC 3.A.1.11.2) | Psest_4281 | | |
| Putrescine transport system permease protein PotI (TC 3.A.1.11.2) | Psest_4280 | | |
| Putrescine-ornithine antiporter | No genes | | |
| Putrescine/proton symporter, putrescine/ornithine antiporter PotE | No genes | | |
| S-adenosylmethionine decarboxylase proenzyme (EC 4.1.1.50), eukaryotic | No genes | | |
| S-adenosylmethionine decarboxylase proenzyme (EC 4.1.1.50), prokaryotic class 1A | No genes | | |
| S-adenosylmethionine decarboxylase proenzyme (EC 4.1.1.50), prokaryotic class 1B | No genes | | |
| Spermidine N1-acetyltransferase (EC 2.3.1.57) | No genes | | |
| Spermidine Putrescine ABC transporter permease component PotB (TC 3.A.1.11.1) | Psest_3656 | | |
| Spermidine Putrescine ABC transporter permease component potC (TC_3.A.1.11.1) | Psest_3655 | | |
| Spermidine synthase (EC 2.5.1.16) | Psest_1802 | | |
| | Psest_1911 | | |
| Transcriptional regulator of catabolic arginine decarboxylase (adiA) | No genes | | |
| 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 | | |