Homer does not alter modulation through mGluR2.A–C, Sample currents for inhibition by 100 μm glutamate in cells expressing mGluR2 (A), mGluR2 plus Homer 1a (B), and mGluR2 plus Homer 3 (C). Calibration: A, 1 nA;B, C, 0.7 nA; A–C, 20 msec.D, Summary of all mGluR2 data. No group produced a level of inhibition that differed from control (p= 0.05, ANOVA). glu, Glutamate; con, control.