Table 2.
Overview of Lactobacillus transport protein numbers (left) and percentages (right), based on TC subclass. PAP strains are in bold.
| TC Subclass and Description | Lac | Lbr | Lbu | Lcr | Lga | Lpa | Lpl | Lre | Lrh | Lru | Lac | Lbr | Lbu | Lcr | Lga | Lpa | Lpl | Lre | Lrh | Lru |
| 1.A, α-type channels | 12 | 13 | 11 | 13 | 10 | 14 | 14 | 13 | 11 | 14 | 3.9 | 4.0 | 4.5 | 4.0 | 3.5 | 3.1 | 3.2 | 4.6 | 2.7 | 4.8 |
| 1.B, β-barrel porins | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1.C, Pore-forming toxins | 7 | 3 | 4 | 5 | 4 | 4 | 7 | 3 | 3 | 4 | 2.3 | 0.9 | 1.6 | 1.5 | 1.4 | 0.9 | 1.6 | 1.1 | 0.7 | 1.4 |
| 1.E, Holins | 1 | 5 | 0 | 3 | 3 | 6 | 8 | 4 | 5 | 3 | 0.3 | 1.5 | 0 | 0.9 | 1.1 | 1.3 | 1.9 | 1.4 | 1.2 | 1.0 |
| 1.S: Bacterial Micro/Nano Compartment Shell Protein Pores | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0.9 | 0 | 0 | 0 | 0 | 0 | 1.1 | 0 | 0 |
| 2.A, Porters (uniporters, symporters, antiporters) | 79 | 114 | 51 | 68 | 66 | 94 | 130 | 100 | 89 | 59 | 26.0 | 34.8 | 20.8 | 20.7 | 23.1 | 20.5 | 30.0 | 35.6 | 21.9 | 20.4 |
| 3.A, P-P-bond-hydrolysis-driven transporters | 149 | 128 | 137 | 161 | 123 | 201 | 170 | 101 | 172 | 148 | 49.2 | 39.1 | 55.7 | 49.1 | 43.0 | 43.8 | 39.2 | 35.9 | 42.3 | 51.0 |
| 3.B, Decarboxylation-driven transporters | 0 | 0 | 1 | 2 | 0 | 3 | 0 | 0 | 3 | 0 | 0 | 0 | 0.4 | 0.6 | 0 | 0.7 | 0 | 0 | 0.7 | 0 |
| 3.D, Oxidoreduction-driven transporters | 2 | 3 | 0 | 4 | 4 | 3 | 3 | 5 | 0 | 3 | 0.7 | 0.9 | 0 | 1.2 | 1.4 | 0.7 | 0.7 | 1.7 | 0 | 1.0 |
| 4.A Phosphotransfer-driven Group Translocators (PTS) | 23 | 3 | 7 | 30 | 31 | 61 | 44 | 2 | 54 | 13 | 7.6 | 0.9 | 2.8 | 9.2 | 10.8 | 13.3 | 10.1 | 0.7 | 13.3 | 4.5 |
| 4.B, Nicotinamide ribonucleoside uptake transporters | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 4.C, Acyl-CoA ligase-coupled transporters | 0 | 1 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0, | 0 | 0.3 | 0 | 0.3 | 0.35 | 0.2 | 0 | 0 | 0 | 0 |
| 4.D, Polysaccharide synthase exporters | 2 | 4 | 1 | 2 | 2 | 4 | 4 | 1 | 2 | 3 | 0.7 | 1.3 | 0.4 | 0.6 | 0.65 | 0.9 | 0.9 | 0.4 | 0.5 | 1.0 |
| 4.F: Choline/Ethanolamine Phosphotransferase 1 (CEPT1) | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | 0 | 0.3 | 0.4 | 0.3 | 0.3 | 0.2 | 0 | 0.4 | 0 | 0.4 |
| 4.H: Lysylphosphatidylglycerol Synthase/Flippases | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 0.3 | 0 | 0 | 0 | 0.2 | 0.2 | 0.4 | 0.2 | 0.4 |
| 5.A, Transmembrane two-electron transfer carriers | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.7 | 0 | 0 | 0 |
| 5.B: Transmembrane 1-electron transfer carriers | 0 | 3 | 1 | 3 | 3 | 11 | 8 | 4 | 12 | 1 | 0 | 0.9 | 0.4 | 0.9 | 1.1 | 2.4 | 1.9 | 1.4 | 3.0 | 0.4 |
| 8.A, Auxiliary transport proteins | 9 | 11 | 5 | 6 | 7 | 17 | 11 | 9 | 16 | 4 | 3.0 | 3.4 | 2.0 | 1.8 | 2.5 | 3.7 | 2.5 | 3.2 | 3.9 | 1.4 |
| 9.A, Recognized transporters of unknown biochemical mechanism | 2 | 1 | 2 | 1 | 1 | 3 | 4 | 3 | 5 | 2 | 0.7 | 0.3 | 0.8 | 0.3 | 0.3 | 0.7 | 0.9 | 1.1 | 1.2 | 0.8 |
| 9.B, Putative transport proteins | 17 | 32 | 25 | 28 | 30 | 34 | 27 | 31 | 34 | 33 | 5.6 | 9.8 | 10.2 | 8.5 | 10.5 | 7.4 | 6.2 | 11.0 | 8.4 | 11.4 |
| Total | 303 | 327 | 246 | 328 | 286 | 458 | 434 | 281 | 407 | 289 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |