CLIC4 is expressed in neuroprogenitor cells in the subgranular zone (SGZ) of the hippocampal dentate gyrus. (A) Image downloaded from Allen Mouse Brain Atlas  showing cells expressing Clic4 transcripts in the SGZ (arrows). (B) Double immunofluorescence for CLIC4-GFP (green) and doublecortin (DCX, red) in the adult mouse dentate gyrus; cell nuclei are labeled by DAPI (blue). (C, D) Most of the SGZ cells are positive for CLIC4-GFP and, a subset of these neuroprogenitor cells (arrows) co-express DCX. Samples of GFP-positive neuroprogenitor cells not expressing DCX, which are likely to represent early progenitors, are marked with arrowheads.