TC level | Classification | Number of TCGa | Percentage (%) |
---|---|---|---|
TC1 | Channels/Pores | 231 | 24.4 |
TC2 | Electrochemical Potential-driven Transporters | 377 | 39.9 |
TC3 | Primary Active Transporters | 191 | 20.2 |
TC4 | Group Translocators | 8 | 0.9 |
TC5 | Transmembrane Electron Carriers | 13 | 1.4 |
TC8 | Accessory Factors Involved in Transport | 36 | 3.8 |
TC9 | Incompletely characterized Transport Systems | 89 | 9.4 |
Total | 945 | 100 |