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TRIB3 Antibody

Rabbit Monoclonal Antibody

  • WB - TRIB3 Antibody AJ1791a
    A. Western blot analysis on (A) 293T treated with Ionomycin and TPA and (B) 293T cell lysates using anti-TRIB3 RabMAb (Cat. #AJ1791a), dilution 1:10,000.
Product Information
  • Applications Legend:
  • WB=Western Blot
  • IHC=Immunohistochemistry
  • IHC-P=Immunohistochemistry (Paraffin-embedded Sections)
  • IHC-F=Immunohistochemistry (Frozen Sections)
  • IF=Immunofluorescence
  • FC=Flow Cytopmetry
  • IC=Immunochemistry
  • ICC=Immunocytochemistry
  • IP=Immunoprecipitation
  • DB=Dot Blot
  • CHIP=Chromatin Immunoprecipitation
  • FA=Fluorescence Assay
  • IEM=Immunoelectronmicroscopy
  • EIA=Enzyme Immunoassay
Primary Accession Q96RU7
Reactivity Human
Host Rabbit
Clonality Monoclonal
Clone Names EPR3151Y
Calculated MW 39578 Da
Gene ID 57761
Other Names Tribbles homolog 3, TRB-3, Neuronal cell death-inducible putative kinase, SINK, p65-interacting inhibitor of NF-kappa-B, TRIB3, C20orf97, NIPK, SKIP3, TRB3
Target/Specificity A synthetic peptide corresponding to residues on the C terminus of human TRIB3 was used as an immunogen.
Dilution WB~~1:5000~20000
Format 50 mM Tris-Glycine (pH 7.4), 0.15 M NaCl, 40% Glycerol, 0.01% sodium azide and 0.05% BSA.
StorageMaintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.
PrecautionsTRIB3 Antibody is for research use only and not for use in diagnostic or therapeutic procedures.
Protein Information
Name TRIB3
Synonyms C20orf97, NIPK, SKIP3, TRB3
Function Disrupts insulin signaling by binding directly to Akt kinases and blocking their activation. May bind directly to and mask the 'Thr-308' phosphorylation site in AKT1. Binds to ATF4 and inhibits its transcriptional activation activity. Interacts with the NF-kappa-B transactivator p65 RELA and inhibits its phosphorylation and thus its transcriptional activation activity. Interacts with MAPK kinases and regulates activation of MAP kinases. May play a role in programmed neuronal cell death but does not appear to affect non-neuronal cells. Does not display kinase activity. Inhibits the transcriptional activity of DDIT3/CHOP and is involved in DDIT3/CHOP-dependent cell death during ER stress. Can inhibit APOBEC3A editing of nuclear DNA.
Cellular Location Nucleus.
Tissue Location Highest expression in liver, pancreas, peripheral blood leukocytes and bone marrow. Also highly expressed in a number of primary lung, colon and breast tumors. Expressed in spleen, thymus, and prostate and is undetectable in other examined tissues, including testis, ovary, small intestine, colon, leukocyte, heart, brain, placenta, lung, skeletal muscle, and kidney.
Research Areas
Citations (0)

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Tribbles homolog 3 (Drosophila), TRIB3, is a putative protein kinase that has been implicated in the regulation of several biological processes in mammalian cells through its ability to influence Akt and other signaling pathways. It is an important negative regulator of adipogenesis because it acts at an early step in the differentiation cascade to block the C/EBP beta proadipogenic function. TRIB3 disrupts insulin signaling by binding directly to Akt and blocking activation of the kinase, thus contributing to insulin resistance in individuals with susceptibility to type II diabetes. TRIB3 expression is remarkably reduced in prostate cancer PC-3 cells after inhibition of phosphatidylinositol (PI) 3-kinase. The expression of TRIB3 is controlled by nutrient supplies, where the lack of glucose or amino acids results in a substantial increase in TRIB3 protein levels in a PI 3-kinase-dependent manner (1-3).


1. Schwarzer R, et al. Cell Signal. 18(6):899-909, 2006
2. Bezy O, et al. Molecular and Cellular Biology 27(19):6818-6831, 2007
3. Du K, et al. Science 300(5625):1574 - 1577, 2003

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Cat# AJ1791a
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