Phospho-specific anti-eIF2α, anti-eIF2α, anti-eIF4GI, anti-4EBP1 were obtained from Cell Signaling Technology (Beverly, MA). Anti-DDX3 and anti-tubulin antibodies were purchased from Abcam, and anti-ATF4 antibody from Santa Cruz Biotech. Anti-eIF4E was obtained from BD Bioscience. Anti-HuR and anti-FMRP antibodies were previously described15 (link),53 (link).
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