CST, 45003S, Phospho-4E-BP1 (Thr37/46) (236B4) Rabbit Monoclonal Antibody (InTraSeq™ 3' Conjugate 3021)

Monoclonal Antibody for studying 4E-BP1 (Thr37/Thr46) phosphate. Validated for Single Cell Analysis - InTraSeq™ 3'. Highly specific and rigorously validated in-house, Phospho-4E-BP1 (Thr37/46) (236B4) Rabbit Monoclonal Antibody (InTraSeq^™ 3' Conjugate 3021) (CST #45003) is ready to ship. Storage Supplied in PBS (pH 7.2), 2 mM EDTA, 0.05% Triton X-100, 2 mg/mL BSA, and 50% glycerol. Store at -20°C. Do not aliquot the antibody . Protocol Available protocols: Single Cell Analysis - InTraSeq™ 3' Specificity / Sensitivity Phospho-4E-BP1 (Thr37/46) (236B4) Rabbit Monoclonal Antibody (InTraSeq™ 3' Conjugate 3021) detects endogenous levels of 4E-BP1 only when phosphorylated at Thr37 and/or Thr46. This antibody conjugate may cross-react with 4E-BP2 and 4E-BP3 when phosphorylated at equivalent sites. Non-specific staining has been observed in mitotic cells by immunofluorescence. Species Reactivity: Human, Mouse Source / Purification Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Thr37 and Thr46 of mouse 4E-BP1. Background Translation repressor protein 4E-BP1 (also known as PHAS-1) inhibits cap-dependent translation by binding to the translation initiation factor eIF4E. Hyperphosphorylation of 4E-BP1 disrupts this interaction and results in activation of cap-dependent translation (1). Both the PI3 kinase/Akt pathway and FRAP/mTOR kinase regulate 4E-BP1 activity (2,3). Multiple 4E-BP1 residues are phosphorylated (4). While phosphorylation by FRAP/mTOR at Thr37 and Thr46 does not prevent the binding of 4E-BP1 to eIF4E, it is thought to prime 4E-BP1 for subsequent phosphorylation at Ser65 and Thr70 (5). Alternate Names 4E-BP1; 4EBP1; BP-1; eIF4E-binding protein 1; EIF4EBP1; eukaryotic translation initiation factor 4E binding protein 1; Eukaryotic translation initiation factor 4E-binding protein 1; MGC4316; PHAS-I; Phosphorylated heat- and acid-stable protein regulated by insulin 1 Specification REACTIVITY: H M SENSITIVITY: Endogenous Source/Isotype: Rabbit IgG