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AB32024

Anti-eIF4EBP1 antibody [Y329]

  • BOND RX™ Validated
  • 20ul selling size
  • RabMAb
  • Recombinant
  • KO Validated
  • What is this?

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(53 Publications)

Rabbit Recombinant Monoclonal eIF4EBP1 antibody. Suitable for IHC-P, ICC/IF, IP, WB, Flow Cyt (Intra) and reacts with Mouse, Rat, Human samples. Cited in 53 publications.

View Alternative Names

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

10 Images
Flow Cytometry (Intracellular) - Anti-eIF4EBP1 antibody [Y329] (AB32024)
  • Flow Cyt (Intra)

Unknown

Flow Cytometry (Intracellular) - Anti-eIF4EBP1 antibody [Y329] (AB32024)

Overlay histogram showing HAP1 wildtype (green line) and HAP1-EIF4EBP1 knockout cells (red line) stained with ab32024. The cells were fixed with 80% methanol (5 min) and then permeabilized with 0.1% PBS-Triton X-100 for 15 min. The cells were then incubated in 1x PBS / 10% normal goat serum to block non-specific protein-protein interactions followed by the antibody (ab32024, 0.1μg/ml) for 30 min at 22°C. The secondary antibody used was Alexa Fluor® 488 goat anti-rabbit IgG (H&L) presorbed (ab150081) at 1/2000 dilution for 30 min at 22°C. A rabbit IgG isotype control antibody (ab172730) was used at the same concentration and conditions as the primary antibody (HAP1 wildtype - black line, HAP1-EIF4EBP1 knockout - grey line). Unlabelled sample was also used as a control (this line is not shown for the purpose of simplicity). Acquisition of >5,000 events were collected using a 50 mW Blue laser (488nm) and 530/30 bandpass filter. This antibody can also be used in HAP1 cells fixed with 4% formaldehyde (10 min) , permeabilized with 0.1% PBS-Triton X-100 for 15 min under the same conditions.

Flow Cytometry (Intracellular) - Anti-eIF4EBP1 antibody [Y329] (AB32024)
  • Flow Cyt (Intra)

Unknown

Flow Cytometry (Intracellular) - Anti-eIF4EBP1 antibody [Y329] (AB32024)

Intracellular Flow Cytometry analysis of HEK-293 (Human embryonic kidney epithelial cell) cells labeling eIF4EBP1 with purified ab32024 at 1/20 dilution (10 μg/mL) (Red). Cells were fixed with 4% Paraformaldehyde and permeabilised with 90% Methanol. A Goat anti rabbit IgG (Alexa Fluor® 488, ab150077) secondary antibody was used at 1/2000. Isotype control - Rabbit monoclonal IgG (Black). Unlabeled control - Cell without incubation with primary antibody and secondary antibody (Blue).

Immunocytochemistry/ Immunofluorescence - Anti-eIF4EBP1 antibody [Y329] (AB32024)
  • ICC/IF

Unknown

Immunocytochemistry/ Immunofluorescence - Anti-eIF4EBP1 antibody [Y329] (AB32024)

Immunocytochemistry/Immunofluorescence analysis of HeLa (Human epithelial cell line from cervix adenocarcinoma) labeling eIF4EBP1 with Purified ab32024 at 1/500 dilution (5 μg/ml). Cells were fixed with 4% PFA and permeabilized with 0.1% tritonX-100. ab150077 Goat anti rabbit IgG(Alexa Fluor® 488) at 1/1000 dilution was used as the secondary antibody. Nuclei were counterstained with DAPI. PBS was used instead of the primary antibody as the negative control.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-eIF4EBP1 antibody [Y329] (AB32024)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-eIF4EBP1 antibody [Y329] (AB32024)

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of human colon cancer tissue sections labeling eIF4EBP1 with purified ab32024 at 1/200 dilution (0.53 µg/mL). Heat mediated antigen retrieval using Bond™ Epitope Retrieval Solution 2 (pH 9.0). Rabbit specific IHC polymer detection kit HRP/DAB (ab209101) was used as the secondary antibody. Negative control : PBS instead of the primary antibody. Hematoxylin was used as a counterstain.

Immunoprecipitation - Anti-eIF4EBP1 antibody [Y329] (AB32024)
  • IP

Unknown

Immunoprecipitation - Anti-eIF4EBP1 antibody [Y329] (AB32024)

Purified ab32024 at 1/20 dilution (2μg) immunoprecipitating eIF4EBP1 in HEK-293 whole cell lysate.
Lane 1 (input) : HEK-293 (Human embryonic kidney epithelial cell) whole cell lysate 10μg
Lane 2 (+) : ab32024 + HEK-293 whole cell lysate.
Lane 3 (-) : Rabbit monoclonal IgG (ab172730) instead of ab32024 in HEK-293 whole cell lysate.
VeriBlot for IP Detection Reagent (HRP) (ab131366) (1/1000 dilution) was used for Western blotting.
Blocking Buffer and concentration : 5% NFDM/TBST.
Diluting buffer and concentration : 5% NFDM/TBST.
Observed band size : 15-20 kDa

All lanes:

Immunoprecipitation - Anti-eIF4EBP1 antibody [Y329] (ab32024)

Predicted band size: 13 kDa

false

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-eIF4EBP1 antibody [Y329] (AB32024)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-eIF4EBP1 antibody [Y329] (AB32024)

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of mouse spleen tissue sections labeling eIF4EBP1 with purified ab32024 at 1/200 dilution (0.53 µg/mL). Heat mediated antigen retrieval using Bond™ Epitope Retrieval Solution 2 (pH 9.0). Rabbit specific IHC polymer detection kit HRP/DAB (ab209101) was used as the secondary antibody. Negative control : PBS instead of the primary antibody. Hematoxylin was used as a counterstain.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-eIF4EBP1 antibody [Y329] (AB32024)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-eIF4EBP1 antibody [Y329] (AB32024)

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of rat spleen tissue sections labeling eIF4EBP1 with purified ab32024 at 1/200 dilution (0.53 µg/mL). Heat mediated antigen retrieval using Bond™ Epitope Retrieval Solution 2 (pH 9.0). Rabbit specific IHC polymer detection kit HRP/DAB (ab209101) was used as the secondary antibody. Negative control : PBS instead of the primary antibody. Hematoxylin was used as a counterstain.

Western blot - Anti-eIF4EBP1 antibody [Y329] (AB32024)
  • WB

Unknown

Western blot - Anti-eIF4EBP1 antibody [Y329] (AB32024)

The molecular weights observed are consistent with what has been described in the literatures (PMID : 28613975, 20890458 and 27358481).

All lanes:

Western blot - Anti-eIF4EBP1 antibody [Y329] (ab32024) at 1/2000 dilution

Lane 1:

HEK-293 (Human embryonic kidney epithelial cell) whole cell lysate at 20 µg

Lane 2:

K-562 (Human chronic myelogenous leukemia lymphoblast) whole cell lysate at 20 µg

Lane 3:

Mouse skeletal muscle lysate at 20 µg

Lane 4:

Rat skeletal muscle lysate at 20 µg

Lane 5:

L6 (Rat skeletal muscle myoblast) whole cell lysate at 20 µg

Secondary

All lanes:

Goat Anti-Rabbit IgG (HRP) with minimal cross-reactivity with human IgG at 1/2000 dilution

Predicted band size: 13 kDa

Observed band size: 18 kDa

false

Western blot - Anti-eIF4EBP1 antibody [Y329] (AB32024)
  • WB

Lab

Western blot - Anti-eIF4EBP1 antibody [Y329] (AB32024)

Lanes 1 - 4 : Merged signal (red and green). Green - ab32024 observed at 20 kDa. Red - loading control, ab8245, observed at 37 kDa.

ab32024 was shown to specifically react with elF4EBP1 in wild-type Hap1 cells. Wild-type and elF4EBP1 knockout samples were subjected to SDS-PAGE. ab32024 and ab8245 (loading control to GADPH) were diluted 1/5000 and 1/2000 respectively and incubated overnight at 4°C. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preadsorbed (ab216776) secondary antibodies at 1/10000 dilution for 1 h at room temperature before imaging.

All lanes:

Western blot - Anti-eIF4EBP1 antibody [Y329] (ab32024)

Lane 1:

Wild-type HAP1 cell lysate at 20 µg

Lane 2:

elF4EBP1 knockout HAP1 cell lysate at 20 µg

Lane 3:

HEK293 cell lysate at 20 µg

Lane 4:

K562 cell lysate at 20 µg

Predicted band size: 13 kDa

false

Western blot - Anti-eIF4EBP1 antibody [Y329] (AB32024)
  • WB

Lab

Western blot - Anti-eIF4EBP1 antibody [Y329] (AB32024)

Lanes 1-2 : Merged signal (red and green). Green - ab32024 observed at 13 kDa. Red - loading control ab8245 observed at 37 kDa.

ab32024 Anti-eIF4EBP1 antibody [Y329] was shown to specifically react with eIF4EBP1 in wild-type HeLa cells. Loss of signal was observed when knockout cell line ab264784 (knockout cell lysate ab257146) was used. Wild-type and eIF4EBP1 knockout samples were subjected to SDS-PAGE. ab32024 and Anti-GAPDH antibody [6C5] - Loading Control (ab8245) were incubated overnight at 4°C at 1 in 5000 Dilution and 1 in 20000 dilution respectively. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preadsorbed (ab216776) secondary antibodies at 1 in 20000 dilution for 1 hour at room temperature before imaging.

All lanes:

Western blot - Anti-eIF4EBP1 antibody [Y329] (ab32024) at 1/5000 dilution

Lane 1:

Wild-type HeLa cell lysate at 20 µg

Lane 2:

Western blot - Human EIF4EBP1 knockout HeLa cell lysate (<a href='/en-us/products/cell-lysates/human-eif4ebp1-knockout-hela-cell-lysate-ab257146'>ab257146</a>) at 20 µg

Secondary

Lanes 1 - 2:

Western blot - Goat anti-Mouse IgG H&L (IRDye® 680RD) preadsorbed (<a href='/en-us/products/secondary-antibodies/goat-mouse-igg-h-l-irdye-680rd-preadsorbed-ab216776'>ab216776</a>) at 1/20000 dilution

Lanes 1 - 3:

Western blot - Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-irdye-800cw-preadsorbed-ab216773'>ab216773</a>) at 1/20000 dilution

Predicted band size: 13 kDa

Observed band size: 13 kDa,37 kDa

false

  • Carrier free

    Anti-eIF4EBP1 antibody [Y329] - BSA and Azide free

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

Y329

Isotype

IgG

Carrier free

No

Reacts with

Mouse, Rat, Human

Applications

WB, Flow Cyt (Intra), IHC-P, IP, ICC/IF

applications

Immunogen

The exact immunogen used to generate this antibody is proprietary information.

Reactivity data

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Product details

Binding of eIF4EBP1 to eIF4E is reversible and is dependent on the phosphorylation status of eIF4EBP1. Non phosphorylated eIF4EBP1 will bind strongly to eIF4E while, the phosphorylated form will not. Akt, TOR, MAP kinase, S6 kinase, and Cdc2 are known kinases capable of inactivating eIF4EBP1 binding to eIF4E by phosphorylating either threonines 35, 45, 69 or serine 64. Although, not all phosphorylation events equally block the eIF4EBP1-eIF4E interaction.

Patented technology
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.

What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:

  • - High batch-to-batch consistency and reproducibility
  • - Improved sensitivity and specificity
  • - Long-term security of supply
  • - Animal-free batch production

For more information, read more on recombinant antibodies.

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Protein A
Storage buffer
pH: 7.2 - 7.4 Preservative: 0.01% Sodium azide Constituents: PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA
Shipped at conditions
Blue Ice
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

EIF4EBP1 also known as 4EBP1 or p4EBP1 is an important protein that acts as a translational repressor by binding to eIF4E therefore inhibiting cap-dependent translation. The molecular weight of 4EBP1 is approximately 12 kDa. This protein is ubiquitously expressed in various tissues indicating its widespread involvement in cellular functions. eIF4EBP1 can be detected and quantified using techniques like the eIF4EBP1 ELISA making it a common target in research for its role in translation regulation.
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.

Deregulation of eIF4EBP1 has been implicated in cancer and neurological disorders. In cancer hyperactive mTOR signaling can lead to excessive phosphorylation of 4EBP1 decreasing its ability to inhibit eIF4E and enhancing translation of oncogenic proteins. In neurological disorders imbalanced eIF4EBP1 activity can disrupt synaptic plasticity and memory formation. Proteins such as p70S6K which are also part of the mTOR pathway share connections with eIF4EBP1 in these pathological conditions.

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Target data

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.
See full target information EIF4EBP1

Publications (53)

Recent publications for all applications. Explore the full list and refine your search

PLoS biology 23:e3003362 PubMed40934285

2025

The mTORC2 subunit RICTOR drives breast cancer progression by promoting ganglioside biosynthesis through transcriptional and epigenetic mechanisms.

Applications

Unspecified application

Species

Unspecified reactive species

Mohammad Nafees Ansari,Somesh K Jha,Ali Khan,Kajal Rajput,Nishant Pandey,Dolly Jain,Rajeshwari Tripathi,Nihal Medatwal,Pankaj Sharma,Sudeshna Datta,Animesh Kar,Trishna Pani,Sk Asif Ali,Kaushavi Cholke,Kajal Rana,Valiya P Snijesh,Geetashree Mukherjee,Suryanarayana V S Deo,Soumen Basak,Ashutosh Mishra,Jyothi S Prabhu,Arnab Mukhopadhyay,Avinash Bajaj,Ujjaini Dasgupta

Journal of cell communication and signaling 19:e70044 PubMed40917114

2025

Trans-Coumaryl acetate mediates GRK5/NF-κB/Nrf2 signaling axis to ameliorate septic acute kidney injury.

Applications

Unspecified application

Species

Unspecified reactive species

Jie Liu,Yugang Deng,Kunyang Lei,Yaqi Li,Siwei Ma

Journal of cellular and molecular medicine 29:e70729 PubMed40755163

2025

WDFY4 Promotes the Progression of Atherosclerosis by Regulating Ferroptosis Mediated by the LAPTM5/CDC42/mTOR/4EBP1/SLC7A11 Pathway.

Applications

Unspecified application

Species

Unspecified reactive species

Nier Zhong,Xiting Nong,Guang Yang

Cell death discovery 11:330 PubMed40670359

2025

The EIF4EBP1 gene encoding 4EBP1 is transcriptionally upregulated by MYC and linked to shorter survival in medulloblastoma.

Applications

Unspecified application

Species

Unspecified reactive species

Laura Hruby,Katerina Schaal,Alberto Delaidelli,Daniel Picard,Christopher Dunham,Oksana Lewandowska,Tobias Reiff,Magalie Larcher,Celio Pouponnot,Poul Hb Sorensen,Barak Rotblat,Guido Reifenberger,Marc Remke,Gabriel Leprivier

Oncology research 33:1473-1484 PubMed40486873

2025

Gallic acid suppresses esophageal squamous cell carcinoma progression and enhances cisplatin chemosensitivity through IL-6/STAT3/Notch pathway.

Applications

Unspecified application

Species

Unspecified reactive species

Nuran Bedolla,Hao Wu,Linyu Liu,Xueting Liu,Yanli Ren

Life science alliance 8: PubMed40324823

2025

SLC38A9 is directly involved in Tat-induced endolysosome dysfunction and senescence in astrocytes.

Applications

Unspecified application

Species

Unspecified reactive species

Neda Rezagholizadeh,Gaurav Datta,Wendie A Hasler,Erica C Nguon,Elise V Smokey,Nabab Khan,Xuesong Chen

Iranian journal of immunology : IJI 21:186-200 PubMed39319693

2024

JAK/STAT Signaling Pathway Mediates Anti-Tumor Immunity of CD8+ T Cells in Renal Cancer.

Applications

Unspecified application

Species

Unspecified reactive species

Jia Shao,Gang Deng,Guojun Wen,Xi Xie

Advanced science (Weinheim, Baden-Wurttemberg, Germany) 11:e2401748 PubMed38994891

2024

Overcoming Cancer Persister Cells by Stabilizing the ATF4 Promoter G-quadruplex.

Applications

Unspecified application

Species

Unspecified reactive species

Chengmei Xiao,Yipu Li,Yushuang Liu,Ruifang Dong,Xiaoyu He,Qing Lin,Xin Zang,Kaibo Wang,Yuanzheng Xia,Lingyi Kong

Environmental toxicology 39:421-434 PubMed37792549

2023

Spleen tyrosine kinase facilitates the progression of papillary thyroid cancer regulated by the hsa_circ_0006417/miR-377-3p axis.

Applications

Unspecified application

Species

Unspecified reactive species

Guangmou Tan,Shiyang Zheng,Boxuan Zhou,Zhaohong Mo,Qiong Zhang,Donghui Zhang,Aimin Li,Xinhui Liu

Cell death discovery 9:101 PubMed36944636

2023

The long non-coding RNA PVT1 promotes tumorigenesis of cutaneous squamous cell carcinoma via interaction with 4EBP1.

Applications

Unspecified application

Species

Unspecified reactive species

Rong Li,Dan Huang,Mei Ju,Hong-Ying Chen,Chao Luan,Jia-An Zhang,Kun Chen
View all publications

Product promise

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