A-M. EM analysis showed that Sel1L deficiency did not alter the morphology of SCs or the morphology of the ER (insets) in SCs in the sciatic nerve of 3, 5, 6, 10, 16 and 24-w-old mice. Scale bars: 1.0 μm. N = 4 animals. Statistical analyses were done with a t-test. Error bars represent SD, n.s. not significant.