General Notes
Eukaryotic translation initiation factor 4E-binding protein 1 (4EBP1) is also known as phosphorylated heat-and acid-stable protein regulated by insulin 1 (PHAS-I), when phosphorylated at serine 65. 4EBP1 belongs to the eIF4E-binding protein family. 4EBP1, when bound to eIF4E, inhibits cap-dependent translation. Phosphorylation at serine 65 inhibits binding of 4EBP1 to eIF4F allowing cap-dependent translation.