重组人eIF4EBP1蛋白
Recombinant Human eIF4EBP1 protein
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Recombinant Human eIF4EBP1 protein is a Human Full Length protein, expressed in Baculovirus infected Sf9 cells, with >95%, suitable for SDS-PAGE, WB.
查看别名
Eukaryotic translation initiation factor 4E-binding protein 1, 4E-BP1, eIF4E-binding protein 1, Phosphorylated heat- and acid-stable protein regulated by insulin 1, PHAS-I, EIF4EBP1
- WB
Unknown
Western blot - Recombinant Human eIF4EBP1 protein (AB60007)
All lanes:
Western blot - Anti-eIF4EBP1 antibody (<a href='/products/primary-antibodies/eif4ebp1-antibody-ab2606'>ab2606</a>) at 1/1000 dilution
Lane 1:
Western blot - Recombinant Human eIF4EBP1 protein (ab60007) at 0.01 µg
Lane 2:
Western blot - Recombinant Human eIF4EBP1 protein (ab60007) at 0.001 µg
Secondary
All lanes:
Western blot - Goat Anti-Rabbit IgG H&L (HRP) preadsorbed (<a href='/products/secondary-antibodies/goat-rabbit-igg-h-l-hrp-preadsorbed-ab97080'>ab97080</a>) at 1/5000 dilution
Predicted band size: 13 kDa
true
Exposure time: 10s
- SDS-PAGE
Unknown
SDS-PAGE - Recombinant Human eIF4EBP1 protein (AB60007)
ab60007 on SDS-PAGE.
反应性数据
序列信息
性能和储存信息
运输条件
推荐的短期储存条件
推荐的长期储存条件
分装信息
储存信息
补充信息
This supplementary information is collated from multiple sources and compiled automatically.
Biological function summary
EIF4EBP1 plays an important role in regulating cell growth and proliferation by modulating protein synthesis. It is a part of the eIF4F complex which is responsible for the initiation of mRNA translation. When hypophosphorylated eIF4EBP1 binds tightly to eIF4E and prevents the assembly of the active eIF4F complex leading to reduced translation initiation of mRNAs involved in growth and survival. This regulation is important in conditions where cells need to adapt to metabolic stress or external signals.
Pathways
The mammalian target of rapamycin (mTOR) pathway regulates eIF4EBP1 through phosphorylation. In response to growth signals mTOR phosphorylates eIF4EBP1 causing the release of eIF4E and allowing mRNA translation to proceed. This interaction links eIF4EBP1 to the PI3K/AKT/mTOR signaling pathway which influences cell cycle progression and survival. Related proteins in this pathway include ribosomal protein S6 kinase (S6K1) which is also phosphorylated by mTOR to promote protein synthesis.
特殊说明
形式
Liquid
附加说明
Purified via His tag. Affinity purified.
常规信息
功能
Repressor of translation initiation that regulates EIF4E activity by preventing its assembly into the eIF4F complex : hypophosphorylated form 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. Mediates the regulation of protein translation by hormones, growth factors and other stimuli that signal through the MAP kinase and mTORC1 pathways.
序列相似性
Belongs to the eIF4E-binding protein family.
翻译后修饰
Phosphorylated on serine and threonine residues in response to insulin, EGF and PDGF (PubMed:12588975, PubMed:12747827, PubMed:22578813, PubMed:24403073, PubMed:29236692, PubMed:7935836, PubMed:9465032). Phosphorylation at Thr-37, Thr-46, Ser-65 and Thr-70, corresponding to the hyperphosphorylated form, is regulated by mTORC1 and abolishes binding to EIF4E (PubMed:12588975, PubMed:12747827, PubMed:22578813, PubMed:24403073, PubMed:29236692, PubMed:7935836, PubMed:9465032).. Ubiquitinated: when eIF4E levels are low, hypophosphorylated form is ubiquitinated by the BCR(KLHL25) complex, leading to its degradation and serving as a homeostatic mechanism to maintain translation and prevent eIF4E inhibition when eIF4E levels are low. Not ubiquitinated when hyperphosphorylated (at Thr-37, Thr-46, Ser-65 and Thr-70) or associated with eIF4E.
亚细胞定位
Nucleus
靶点信息
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