Expression of eGFP-Arc. A, eGFP-Arc is ubiquitously expressed in the DRG and co-localizes with peripherin expressing neurons. B, eGFP-Arc is expressed in large diameter DRG neurons that express NF200 in the DRG. C, Expression patterns in the sciatic nerve for eGFP-Arc and NF200. D, eGFP-Arc is expressed in the glabrous skin and co-localizes with CGRP-expressing fibers. E, eGFP-Arc is expressed in the glabrous skin and co-localizes with β-III tubulin-expressing fibers. Arrowheads indicate colocalization.