製品の概要

製品の詳細

  • 由来Recombinant
  • 由来Escherichia coli
  • アミノ酸配列
    • アクセッション番号Q13542
    • 生物種Human
    • 配列MGSSHHHHHHSSGLVPRGSHMSSSAGSGHQPSQSRAIPTRTVAISDAAQL PHDYCTTPGGTLFSTTPGGTRIIYDRKFLLDRRNSPMAQTPPCHLPNIPG VTSPGTLIEDSKVEVNNLNNLNNHDRKHAVGDDAQFEMDI
    • 分子量15 kDa including tags
    • 領域1 to 120
    • タグHis tag N-Terminus

特性

Our Abpromise guarantee covers the use of ab104667 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

  • アプリケーション

    SDS-PAGE

    Mass Spectrometry

  • 質量分析
    MALDI-TOF
  • 精製度> 85 % SDS-PAGE.
    purified by using anion-exchange chromatography (DEAE sepharose resin) and gel-filtration chromatography (Sephacryl S-200) with 20mM Tris pH 7.5, 2mM EDTA.
  • 製品の状態Liquid
  • Concentration information loading...

前処理および保存

  • 保存方法および安定性

    Shipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.

    Preservative: None
    Constituents: 10% Glycerol, 0.1M Sodium chloride, 20mM Tris HCl, 1mM DTT, pH 8.0

関連情報

  • 別名
    • 4E-BP2
    • 4EBP2
    • 4EBP2_HUMAN
    • eIF4E binding protein 2
    • eIF4E-binding protein 2
    • Eif4ebp2
    • Eukaryotic translation initiation factor 4E binding protein 1
    • Eukaryotic translation initiation factor 4E-binding protein 2
    • PHASII
    • phosphorylated, heat and acid stable regulated by insulin protein II
    see all
  • 機能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.
  • 配列類似性Belongs to the eIF4E-binding protein family.
  • ドメイン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).
  • 翻訳後修飾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.
  • Information by UniProt

Recombinant Human eIF4EBP2 protein 画像

  • 15% SDS-PAGE showing ab104667 at approximately 15.1kDa (3µg).

Recombinant Human eIF4EBP2 protein (ab104667) 使用論文

This product has been referenced in:
  • Wollenhaupt K  et al. The eIF4E repressor protein 4E-BP2 is merely truncated, despite 4E-BP1 degradation in the porcine uterine tissue during implantation. Mol Reprod Dev 79:767-76 (2012). Read more (PubMed: 22968905) »

See 1 Publication for this product

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