File:Lu Nicoll 2009 F1.jpg

FIGURE 1

Outside-Out Patch Recordings of AMPAR-Mediated Current from CA1 Pyramidal Neurons in GluA2 KO and WT Mice (A) (Top) Example of the strongly inwardly rectifying I/V curve of glutamate-evoked AMPAR-mediated current, in the presence of 100 μM cyclothiazide, from acute hippocampal slice from the germline 2- to 3-week-old GluA2-KO mouse, with an RI value of 0.16. (Bottom) In a subsequent glutamate application in the same OOP, held at −60 mV, ∼99% of the current could be blocked by 100 nM PhTx-433. (B) Example of the linear I/V curve of glutamate-evoked current in a WT littermate, with an RI value of 0.83. (Bottom) In the same OOP, glutamate-evoked current was untouched by 100 nM PhTx-433. (C) Bar graph showing average RI values for each of the genotypes: GluA2-KO mice, RI = 0.12 ± 0.02 (n = 9); WT mice, RI = 0.82 ± 0.02 (n = 15). (D) Bar graph showing the average percent block (%) of glutamate-evoked currents by 100 nM PhTx-433 in GluA2-KO mice; average percent block is 97.9% ± 0.4% (n = 6) and, in WT mice, 0% (n = 5).