Fig. S4.
Splicing efficiency and membrane localization efficiency of XBP1u mRNA. (A) Relationship between splicing efficiency and membrane localization efficiency of XBP1u mRNA according to Figs. 2C and 5 D and E is shown. The bar indicates SD. (B) Primary structure of variants of XBP1u and C-terminal extended XBP1u, XBP1u+s. PS, pausing sequence; WA, W256A. (C) Membrane localization efficiencies of XBP1u variant mRNA transiently expressed in HEK293T cells were quantified as described in Fig. 2C. Bars indicate SD. *P < 0.05 (n = 4) using ANOVA. n.s., nonsignificant difference.