In vivo interaction of NRF-2 with the AMPA receptor
subunit gene promoters using the ChIP assay in N2a cells (A) and murine visual
cortical tissue (B). Nuclear extract was immunoprecipitated with anti
NRF-2α antibodies (NRF-2 IP lane), anti-nerve growth factor receptor p75
antibody (negative control, NGFR IP lane), or no antibody (negative control, No
Ab lane). Control reactions for PCR were performed with 0.5% (Input
0.5% IP lane) and 0.1% (Input 0.1% IP lane) of input
chromatin. COX6B promoter was used as a positive control, and
Exon 8 of NRF-1 was used as a negative control. Results indicate NRF-2
interactions with the tested region on the Gria2 promoter, but
not the Gria1, Gria3, or
Gria4 promoters, in both N2a cells and murine visual
cortical tissue.