Phospho-4E-BP1 (Thr36) Antibody - #AF3431

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产品: 磷酸化 4E-BP1 (Thr36) 抗体
货号: AF3431
描述: Rabbit polyclonal antibody to Phospho-4E-BP1 (Thr36)
应用: WB IHC IF/ICC
反应: Human, Mouse, Rat
预测: Pig, Zebrafish, Bovine, Horse, Sheep, Rabbit, Dog, Chicken
分子量: 18kDa; 13kD(Calculated).
蛋白号: Q13541
RRID: AB_2834873

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实验方案
WB Handbook
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产品描述

来源:
Rabbit
应用:
WB 1:500-1:2000, IHC 1:50-1:200, IF/ICC 1:100-1:500
*The optimal dilutions should be determined by the end user.
*Tips:

WB: 适用于变性蛋白样本的免疫印迹检测. IHC: 适用于组织样本的石蜡(IHC-p)或冰冻(IHC-f)切片样本的免疫组化/荧光检测. IF/ICC: 适用于细胞样本的荧光检测. ELISA(peptide): 适用于抗原肽的ELISA检测.

反应:
Human,Mouse,Rat
预测:
Pig(100%), Zebrafish(91%), Bovine(100%), Horse(100%), Sheep(100%), Rabbit(100%), Dog(100%), Chicken(100%)
克隆:
Polyclonal
特异性:
Phospho-4E-BP1 (Thr36) Antibody detects endogenous levels of 4E-BP1 only when phosphorylated at Threonine 36.
RRID:
AB_2834873
引用格式: Affinity Biosciences Cat# AF3431, RRID:AB_2834873.
偶联:
Unconjugated.
纯化:
The antibody is from purified rabbit serum by affinity purification via sequential chromatography on phospho-peptide and non-phospho-peptide affinity columns.
保存:
Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at -20 °C. Stable for 12 months from date of receipt.
别名:

展开/折叠

4E-BP1; 4EBP1; 4EBP1_HUMAN; BP 1; eIF4E binding protein 1; eIF4E-binding protein 1; Eif4ebp1; Eukaryotic translation initiation factor 4E-binding protein 1; PHAS-I; PHASI; Phosphorylated heat- and acid-stable protein regulated by insulin 1;

抗原和靶标

免疫原:
Uniprot:

Q13541(4EBP1_HUMAN) >>Visit HPA database.

基因/基因ID:
EIF4EBP1(1978)
描述:
4E-BP1 binds to eIF4E, preventing its assembly into the EIF4F complex and inhibiting cap-dependent translation. Phosphorylation of 4E-BP1 disrupts this binding, activating cap-dependent translation.
序列:
MSGGSSCSQTPSRAIPATRRVVLGDGVQLPPGDYSTTPGGTLFSTTPGGTRIIYDRKFLMECRNSPVTKTPPRDLPTIPGVTSPSSDEPPMEASQSHLRNSPEDKRAGGEESQFEMDI

种属预测

种属预测:

score>80的预测可信度较高，可尝试用于WB检测。*预测模型主要基于免疫原序列比对，结果仅作参考，不作为质保凭据。

Species
Results
Score
Pig
100
Horse
100
Bovine
100
Sheep
100
Dog
100
Chicken
100
Rabbit
100
Zebrafish
91
Xenopus
0
Model Confidence:
High(score>80) Medium(80>score>50) Low(score<50) No confidence

翻译修饰 - Q13541 作为底物

Site PTM Type Enzyme
S2 Acetylation
S2 Phosphorylation
S5 Phosphorylation
S6 Phosphorylation
S8 Phosphorylation Q13315 (ATM)
T10 Phosphorylation
S12 Phosphorylation
Y34 Phosphorylation
S35 Phosphorylation
T36 Phosphorylation P51449 (RORC) , O75582 (RPS6KA5) , P31751 (AKT2) , P42345 (MTOR)
T37 Phosphorylation P49841 (GSK3B) , Q16539 (MAPK14) , P31749 (AKT1) , P42345 (MTOR) , P06493 (CDK1) , P28482 (MAPK1) , Q5S007 (LRRK2)
T41 Phosphorylation P42345 (MTOR) , P49674 (CSNK1E)
S44 Phosphorylation P42345 (MTOR)
T45 Phosphorylation O75582 (RPS6KA5) , P28482 (MAPK1) , P42345 (MTOR) , P31751 (AKT2) , P51449 (RORC)
T46 Phosphorylation P06493 (CDK1) , Q5S007 (LRRK2) , Q16539 (MAPK14) , P42345 (MTOR) , P31749 (AKT1) , P28482 (MAPK1) , P49841 (GSK3B)
T50 Phosphorylation P49674 (CSNK1E)
Y54 Phosphorylation
K57 Ubiquitination
C62 S-Nitrosylation
R63 Methylation
S65 Phosphorylation P27361 (MAPK3) , P42345 (MTOR) , P28482 (MAPK1) , O75582 (RPS6KA5) , Q8TAI7 (RHEBL1) , P31749 (AKT1) , Q92630 (DYRK2) , Q9P1W9 (PIM2) , P06493 (CDK1) , Q16539 (MAPK14)
T68 Phosphorylation
K69 Ubiquitination
T70 Phosphorylation P28482 (MAPK1) , P06493 (CDK1) , Q16539 (MAPK14) , P42345 (MTOR) , P41279 (MAP3K8)
T77 Phosphorylation
T82 Phosphorylation
S83 Phosphorylation P42345 (MTOR) , P06493 (CDK1) , P28482 (MAPK1)
S85 Phosphorylation
S86 Phosphorylation
S94 Phosphorylation Q13315 (ATM) , Q13535 (ATR)
S96 Phosphorylation
S101 Phosphorylation Q92630 (DYRK2) , P42345 (MTOR)
S112 Phosphorylation P19784 (CSNK2A2) , P68400 (CSNK2A1) , Q13315 (ATM)

研究背景

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.

翻译修饰:

Phosphorylated on serine and threonine residues in response to insulin, EGF and PDGF. 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.

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.

亚基结构:

Hypophosphorylated EIF4EBP1 competes with EIF4G1/EIF4G3 to interact with EIF4E; insulin stimulated MAP-kinase (MAPK1 and MAPK3) or mTORC1 phosphorylation of EIF4EBP1 causes dissociation of the complex allowing EIF4G1/EIF4G3 to bind and consequent initiation of translation. Interacts (via TOS motif) with RPTOR; promoting phosphorylation by mTORC1.

蛋白家族:

The TOS motif mediates interaction with RPTOR, leading to promote phosphorylation by mTORC1 complex.

Belongs to the eIF4E-binding protein family.

研究领域

· Cellular Processes > Cell growth and death > Cellular senescence.   (View pathway)

· Environmental Information Processing > Signal transduction > ErbB signaling pathway.   (View pathway)

· Environmental Information Processing > Signal transduction > HIF-1 signaling pathway.   (View pathway)

· Environmental Information Processing > Signal transduction > mTOR signaling pathway.   (View pathway)

· Environmental Information Processing > Signal transduction > PI3K-Akt signaling pathway.   (View pathway)

· Environmental Information Processing > Signal transduction > AMPK signaling pathway.   (View pathway)

· Genetic Information Processing > Translation > RNA transport.

· Human Diseases > Drug resistance: Antineoplastic > EGFR tyrosine kinase inhibitor resistance.

· Human Diseases > Infectious diseases: Viral > Human papillomavirus infection.

· Human Diseases > Cancers: Specific types > Acute myeloid leukemia.   (View pathway)

· Human Diseases > Cancers: Overview > Choline metabolism in cancer.   (View pathway)

· Organismal Systems > Aging > Longevity regulating pathway.   (View pathway)

· Organismal Systems > Endocrine system > Insulin signaling pathway.   (View pathway)

文献引用

1). Patchouli alcohol protects against chronic unpredictable mild stress-induced depressant-like behavior through inhibiting excessive autophagy via activation of mTOR signaling pathway. BIOMEDICINE & PHARMACOTHERAPY, 2020 (PubMed: 32244196) [IF=7.5]

Application: WB    Species: rat    Sample: hippocampus

Fig. 4. |The effect of PA on the level of expression of p-4E-BP-1 protein in the hippocampus. (A) The effect of PA on p-4E-BP-1 and 4E-BP-1 protein levels in hippocampus were investigated by western blot analysis.
2). α-Hydroxyisocaproic Acid Decreases Protein Synthesis but Attenuates TNFα/IFNγ Co-Exposure-Induced Protein Degradation and Myotube Atrophy via Suppression of iNOS and IL-6 in Murine C2C12 Myotube. Nutrients, 2021 (PubMed: 34371902) [IF=5.9]

Application: WB    Species: Mice    Sample:

Figure 2 The effects of HICA on the intracellular signaling pathways. A typical image for a capillary immunoassay is shown (A). The phosphorylation levels of (B) p70S6K and 4E-BP1; (C) AMPK, ACC, and ULK1; (D) ERK1/2; (E) p38MAPK; and (F) eEF2 are shown. The phosphorylation is normalized to the total protein expression. The β-tubulin content in the lysate was measured as a loading control (G). The time course of these experiments is shown in the upper region. DM: differentiation medium, DMEM: Dulbecco’s modified Eagle’s medium, and w/o AA: without amino acids. Data are displayed as the means ± SD, and n = 4 for each group in all bar graphs. * p < 0.05 and ** p < 0.01 vs. the vehicle-treated group.
3). Curcumin promotes cell cycle arrest and apoptosis of acute myeloid leukemia cells by inactivating AKT. Oncology Reports, 2021 (PubMed: 33649826) [IF=4.2]

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