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Mouse Monoclonal Anti-4E-BP2 antibody (STJ99276)
Supplier: St John’s Laboratory Ltd.
Recommended applications: WB, ELISA
Recommended dilution: WB 1:500-2000; ELISA 1:10000-20000
Recommended protocols: check protocols
Click or hover above images to see image description for Anti-4E-BP2 antibody.
Check alternative names for the antibodyExpand
|4EBP1 antibody|4EBP2 antibody|4EBP3 antibody|eIF4E binding protein 1 antibody|eIF4E binding protein 2 antibody|eIF4E binding protein 3 antibody|Eukaryotic translation initiation factor 4E binding protein 1 antibody|Eukaryotic translation initiation factor 4E binding protein 2 antibody|Eukaryotic translation initiation factor 4E binding protein 3 antibody|PHAS1 antibody|Phospho anti-eIF4EBP1 + eIF4EBP2 + eIF4EBP3 (T45) antibody [EPR2169Y] (ab68187)
SCBT cat No: sc-134232|
|Catalogue No.|| |
Recombinant protein of human 4E-BP2.
|Recommended dilution|| |
WB 1:500-2000; ELISA 1:10000-20000
|Molecular weight|| |
Anti-4E-BP2 antibody was tube-contained in liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.
Anti-4E-BP2 antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.
-20 Celsius degree. Avoid repeated freeze/thaw cycles.
|Alternative antibody names|| |
4EBP1 antibody, 4EBP2 antibody, 4EBP3 antibody, eIF4E binding protein 1 antibody, eIF4E binding protein 2 antibody, eIF4E binding protein 3 antibody, Eukaryotic translation initiation factor 4E binding protein 1 antibody, Eukaryotic translation initiation factor 4E binding protein 2 antibody, Eukaryotic translation initiation factor 4E binding protein 3 antibody, PHAS1 antibody
|Database links|| |
|Protein function|| |
Repressor of translation initiation involved in synaptic plasticity, learning and memory formation (By similarity). Regulates EIF4E activity by preventing its assembly into the eIF4F complex: hypophosphorylated form of EIF4EBP2 competes with EIF4G1/EIF4G3 and strongly binds to EIF4E, leading to repress translation. In contrast, hyperphosphorylated form dissociates from EIF4E, allowing interaction between EIF4G1/EIF4G3 and EIF4E, leading to initiation of translation (PubMed:25533957). EIF4EBP2 is enriched in brain and acts as a regulator of synapse activity and neuronal stem cell renewal via its ability to repress translation initiation (By similarity). Mediates the regulation of protein translation by hormones, growth factors and other stimuli that signal through the MAP kinase and mTORC1 pathways (By similarity). .
|Protein sequence and domain|| |
Belongs to the eIF4E-binding protein family. The TOS motif mediates interaction with RPTOR, leading to promote phosphorylation by mTORC1 complex. ; Intrinsically disordered protein that undergoes folding upon phosphorylation (PubMed:25533957). Hypophosphorylated form interacts strongly with EIF4E using (1) the YXXXXLPhi motif, that undergoes a disorder-to-helix transition upon binding and (2) the secondary EIF4E binding sites (residues 78-82) (PubMed:24207126, PubMed:25533957). Phosphorylation at Thr-37 and Thr-46 induces folding of region encompassing residues from Pro-18 to Arg-62 of into a four-stranded beta-domain that sequesters the helical YXXXXLPhi motif into a buried beta-strand, blocking accessibility to EIF4E. Protein phosphorylated at Thr-37 and Thr-46 is however unstable and subsequent phosphorylation at Ser-65, Thr-70 and Ser-83 is required to stabilize the fold, decreasing affinity for EIF4E by a factor of 4000 (PubMed:24207126, PubMed:25533957).
|Protein post-translational modifications|| |
Phosphorylation at Thr-37, Thr-46, Ser-65, Thr-70 and Ser-83 is mediated by MTOR and corresponds to the hyperphosphorylated form: it abolishes binding to EIF4E by inducing folding of intrinsically disordered regions (PubMed:24207126, PubMed:25533957). First phosphorylated at Thr-37 and Thr-46 by MTOR, inducing folding of region encompassing residues from Pro-18 to Arg-62 of into a four-stranded beta-domain that sequesters the helical YXXXXLPhi motif into a partly buried beta-strand, blocking accessibility to EIF4E. Protein phosphorylated at Thr-37 and Thr-46 is however unstable and subsequent phosphorylation at Ser-65, Thr-70 and Ser-83 is required to stabilize the fold, decreasing affinity for EIF4E by a factor of 4000 (PubMed:24207126, PubMed:25533957). Phosphorylated in response to insulin, EGF and PDGF. .; Deamidated at Asn-99 and Asn-102 to aspartate (Asp) in brain. Deamidation promotes interaction with RPTOR, subsequent phosphorylation by mTORC1 and increased translation, leading to impair kinetics of excitatory synaptic transmission. Deamidation takes place during postnatal development, when the PI3K-Akt-mTOR signaling is reduced, suggesting it acts as a compensatory mechanism to promote translation despite attenuated PI3K-Akt-mTOR signaling in neuron development. Deamidation converts Asn residues into a mixture of Asp and isoaspartate; interactions with PCMT1 is required to prevent isoaspartate accumulation and convert isoaspartate to Asp. .
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St John’s Laboratory Ltd.
|Product type|| |
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