Abstract
We analyzed the gene expression of sperm flagellum-movement associated proteins, namely, adenylate kinase domain containing protein (RGD1303144) and outer dense fiber protein 1. These gene expressions were up-regulated in a maturing rat testis, and RGD1303144 gene was expressed dominantly in spermatocytes. Although 2,3,7,8-tetrachlorodibenzo-p-dioxin administration reduced sperm motility, these gene expressions were not affected.