Rs1 expression in R26(EF1α-tTA/TetO-mCh-Rs1) mice show significant variability and degrees of induction among different tissues. Rs1 expression was allowed (off doxy) or suppressed (on doxy) in mice for four weeks starting from gestation. mRNA levels were assessed by qPCR for Rs1. Representative mice are shown. Error bars represent average +/- 1 SD of technical triplicates.