Fig. 6. Northern blot analysis of mRNA from cultured testicular fragments for eSRS21. Testicular fragments were cultured without (lane 2) or with (lane 3) 10 ng/ml 11-ketotestosterone for 6 days. Lane 1 shows the initial control before culture. Northern blot of elongation factor 1 (EF1), which serves as reference, is given underneath the figure.