Table 5. List of the EAAT3 residues coordinating the three Na+ ions.
Outward | Inward | ||
Helix-Residue | EAAT3 | EAAT3 | |
Na1 | TM7 - G362 (O) | ||
TM7 - N366 (O) | |||
TM8 - N451 (O) | |||
TM8 - D455 (O1) | |||
TM8 - D455 (O2) | |||
H2O | |||
Na3 | TM3 - Y98 (O) | ||
TM3 - T101 (OH) | |||
TM3 - T102 (OH) | |||
TM7 - N366 (Oδ) | |||
TM7 - D368 (O1) | |||
TM7 - D368 (O2) | |||
Na2 | TM7 - T364 (OH) | ||
HP2 - I406 (O) | |||
HP2 - A408 (O) | |||
H2O |
The average Na+–O distances (in Å) are obtained from 5 ns MD simulations of the closed state in the outward and inward-facing conformations of EAAT3. Nature of the coordinating oxygens are indicated in parenthesis.