Table 4.
Transporter proteins in the PDB Archive
| All | Class 1: Channels/pores | Class 2: Electrochemical potential‐driven transporters | Class 3: Primary active transporters | Class 4: Group translocators | Class 5: Transmembrane electron carriers | Class 8: Accessory factors involved in transport | Class 9: Incompletely characterized transport systems | |
|---|---|---|---|---|---|---|---|---|
| Structures | 9,834 | 4,131 | 721 | 2,203 | 80 | 96 | 1,651 | 952 |
|
MX (resolution) |
8,207 |
3,364 (7.6–0.82 Å) |
669 (5.97–1.0 Å) |
1911 (7.78–0.88 Å) |
52 (3.91–1.45 Å) |
79 (3.7–0.99 Å) |
1,272 (7.81–0.73 Å) |
860 (7.0–0.85 Å) |
| NMR | 716 | 313 | 15 | 80 | 21 | 13 | 216 | 58 |
|
3DEM (resolution) |
911 |
454 (50.0–1.9 Å) |
37 (14.0–3.0 Å) |
212 (37.0–2.0 Å) |
7 (4.3–2.6 Å) |
4 (3.8–3.1 Å) |
163 (35.0–2.6 Å) |
34 (35.0–3.0 Å) |
| Unique | 3,429 | 1,318 | 214 | 810 | 46 | 43 | 655 | 343 |
Note: Table generated in July 2019 using sequences from the Transporter Classification Database.74
Abbreviations: 3DEM, three‐dimensional electron microscopy; MX, macromolecular X‐ray crystallography; NMR, nuclear magnetic resonance.