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. 2001 May 28;153(5):1011–1022. doi: 10.1083/jcb.153.5.1011

Figure 1.

Figure 1

A1 is a GSE attenuating CHOP expression by ER stress and amino acid deprivation. (A) GFP expression levels analyzed by FACS® in parental CHOP::GFP-containing CHO cells and in cells transduced by the A1 retroviral clone. Cells were untreated and cultured in complete media (UT), cultured for 16 h in media lacking leucine (−Leu), or exposed to tunicamycin (2 μg/ml) for 16 h (Tm). The fold increase in GFP compared with the untreated cells is indicated. (B) Immunoblot of endogenous CHOP in the parental and A1-transduced cells after exposure to tunicamycin (2 μg/ml) or leucine-free media (upper panel). Anti-eIF2α immunoblot of the same membrane serves as a control of protein loading (lower panel).