Table 2 Distribution of annotated genes over the different membrane transport proteins classes
Transporter protein class | Number of annotated genes | % Annotated genes | % Annotated genes – K. lactis | % Annotated genes – H. pylori |
|---|---|---|---|---|
1. Channels/pores | 35 | 13.2 | 9.6 | 13.7 |
2. Electrochemical potential-driven transporters | 141 | 53.2 | 65.4 | 35.8 |
3. Primary active transporters | 80 | 30.2 | 15.3 | 43.5 |
4. Group translocators | 0 | -- | 0.3 | 0.7 |
5. Transmembrane electron carriers | 3 | 1.1 | -- | -- |
8. Accessory factors involved in transport | 0 | -- | 1.3 | -- |
9. Incompletely characterized transport systems | 21 | 7.9 | 8.0 | 6.1 |