(a) The knockdown of the IRE1α RNase activity (K907A) reduced levels of ERLIN2 protein in SUM-44 cells. Forced expression of wild-type IRE1α (b) and its substrate, spliced XBP1 (c), leads to increased expression of ERLIN2 at protein level in MCF10A cells. (d) ERLIN2 expression in MCF10A cells was analyzed by western blot after culture 48 hours in insulin- or EGF-depleted media, compared to that in normal culture media.
Wang et al. BMC Cancer 2012 12:225 doi:10.1186/1471-2407-12-225