Immunohistochemical characterization of ChR2-GFP expression in RGCs with and without the Na_VII-III-targeting motif.

<p>(A) In motif-targeted RGCs, the expression of ChR2-GFP was concentrated in the AISs and co-localized with the AIS marker AnkG (arrows). (B) In non-motif-targeted RGCs, the expression of ChR2-GFP was not concentrated in the AIS. The arrows point to the AnkG stained AIS.