To further determine the specificity of the anti-phospho-4EBP1
(Thr37/46) antibody, the antibody was preincubated with an
equal volume of the phospho-4E-BP1 (Thr37/46) blocking peptide
(cat. no. 1052, Cell Signaling Technology) in 10 ml of TBST with 5%
bovine serum albumin (BSA) at room temperature for 30 min
before proceeding with the standard Western blot analysis