(A) Northern blot of the expression of n-Tr20 and other tRNAArgUCU genes. 5S rRNA was used as a loading control.
(B–E) In situ hybridization of n-Tr20 (red) and immunohistochemistry for cell-type markers (brown) in the hippocampus (B and C), cortex (D), and cerebellum (E). Cortical layers are indicated by Roman numerals. DG, dentate gyrus, ML, molecular layer; PCL, Purkinje cell layer; GCL, granule cell layer. Scale bars represent 100 μm (D), 50 μm (B), and 25 μm (B and D [higher magnification], C, and E).