CaMKII phosphorylates the GluA1 AMPA subunit at Ser831 to increase single channel conductance. Here, the authors show that coexpression of TARPs is required for phospho-Ser831 to increase conductance of GluA1/GluA2 receptors. Ser831 phosphorylation increases the efficiency with which each subunit can activate, increasing the likelihood of simultaneous subunit activation during gating.
- Anders S Kristensen
- Meagan A Jenkins
- Stephen F Traynelis
