Long-term potentiation is independent of the C-tail of the GluA1 AMPA receptor subunit.

Díaz-Alonso, Javier; Morishita, Wade; Incontro, Salvatore; Simms, Jeffrey; Holtzman, Julia; Gill, Michael; Mucke, Lennart; Malenka, Robert C et al. · Elife · 2020

basic_science · Level V

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Abstract

We tested the proposal that the C-terminal domain (CTD) of the AMPAR subunit GluA1 is required for LTP. We found that a knock-in mouse lacking the CTD of GluA1 expresses normal LTP and spatial memory, assayed by the Morris water maze. Our results support a model in which LTP generates synaptic slots, which capture passively diffusing AMPARs.

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