Fig 1: Effects of selenomethionine (Se-Met) supplementation on the relative mRNA expression of 25 selenoproteins in porcine mammary epithelial cells (pMECs). (A) selenoprotein SEPHS2 and SELENOP; (B) the selenoprotein GPX family; (C) the selenoprotein TXNRD family; (D) antioxidant selenoproteins; (E) the selenoprotein DIO family; (F) protein-fold function selenoproteins; (G) other unknown functions of selenoproteins. The cells were incubated for 48 h with different concentrations of Se-Met (0, 0.5, 1, 2, and 4 µM) and then collected for determination of mRNA expression. The data are expressed as the mean ± SEM (n = 6). Different superscript letters indicate a significant difference (p < 0.05).