Fig. 1.
Purification of NR1a + NR2A NMDA receptor channel proteins. SDS/PAGE and corresponding 6xHis tag Western blot analysis of NMDA receptor protein samples isolated from Sf9 cells (A) after metal-affinity chromatography (B) and after gel-filtration chromatography (C). Arrows mark the positions of the NR1a and NR2A monomers.