| Salt bridge | Distance (Å) | Occupancy (%) | Proteins in PSII | Cryo-EM structuresa | |
|---|---|---|---|---|---|
| Acidic | Basic | ||||
| GLU_85 | LYS_32 | 3.80 ± 0.45 | 95 | PsbH | 3JCU, 7OUI |
| ASP_49 | LYS_130 | 5.34 ± 0.39 | 55 | CP47 | 3JCU |
| GLU_71 | ARG_127 | 4.32 ± 0.93 | 43 | CP47 | |
| ASP_51 | ARG_230 | 4.47 ± 0.29 | 71 | CP47 | |
| ASP_477 | LYS_59 | 5.35 ± 0.33 | 39 | CP47 | 3JCU, 7OUI |
| ASP_483 | LYS_59 | 4.07 ± 1.23 | 79 | CP47 | 3JCU, 5XNL |