Overview

  • Product name
  • Description
    Rabbit polyclonal to eIF4A3
  • Host species
    Rabbit
  • Tested applications
    Suitable for: WB, ICC/IFmore details
  • Species reactivity
    Reacts with: Human
    Predicted to work with: Mouse, Rat, Chicken, Cow, Pig, Xenopus laevis, Zebrafish, Xenopus tropicalis
  • Immunogen

    Recombinant fragment, corresponding to a region within amino acids 176-411 of Human eIF4A3 (Uniprot ID P38919)

  • Positive control
    • Raji whole cell lysate, paraformaldehyde-fixed A431 cells

Properties

  • Form
    Liquid
  • Storage instructions
    Shipped at 4°C. Upon delivery aliquot. Store at -20°C or -80°C. Avoid freeze / thaw cycle.
  • Storage buffer
    Preservative: 0.01% Thimerosal (merthiolate)
    Constituents: 0.75% Glycine, 1.21% Tris, 20% Glycerol
  • Concentration information loading...
  • Purity
    Immunogen affinity purified
  • Clonality
    Polyclonal
  • Isotype
    IgG
  • Research areas

Applications

Our Abpromise guarantee covers the use of ab155804 in the following tested applications.

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

Application Abreviews Notes
WB 1/500 - 1/3000. Predicted molecular weight: 47 kDa.
ICC/IF 1/100 - 1/1000.

Target

  • Function
    ATP-dependent RNA helicase. Component of a splicing-dependent multiprotein exon junction complex (EJC) deposited at splice junction on mRNAs. The EJC is a dynamic structure consisting of a few core proteins and several more peripheral nuclear and cytoplasmic associated factors that join the complex only transiently either during EJC assembly or during subsequent mRNA metabolism. Core components of the EJC, that remains bound to spliced mRNAs throughout all stages of mRNA metabolism, functions to mark the position of the exon-exon junction in the mature mRNA and thereby influences downstream processes of gene expression including mRNA splicing, nuclear mRNA export, subcellular mRNA localization, translation efficiency and nonsense-mediated mRNA decay (NMD). Constitutes at least part of the platform anchoring other EJC proteins to spliced mRNAs. Its RNA-dependent ATPase and RNA-helicase activities are induced by CASC3, but abolished in presence of the MAGOH/RBM8A heterodimer, thereby trapping the ATP-bound EJC core onto spliced mRNA in a stable conformation. The inhibition of ATPase activity by the MAGOH/RBM8A heterodimer increases the RNA-binding affinity of the EJC. Involved in translational enhancement of spliced mRNAs after formation of the 80S ribosome complex. Binds spliced mRNA in sequence-independent manner, 20-24 nucleotides upstream of mRNA exon-exon junctions. Shows higher affinity for single-stranded RNA in an ATP-bound core EJC complex than after the ATP is hydrolyzed.
  • Tissue specificity
    Ubiquitously expressed.
  • Sequence similarities
    Belongs to the DEAD box helicase family. eIF4A subfamily.
    Contains 1 helicase ATP-binding domain.
    Contains 1 helicase C-terminal domain.
  • Cellular localization
    Nucleus. Nucleus speckle. Cytoplasm. Nucleocytoplasmic shuttling protein. Travels to the cytoplasm as part of the exon junction complex (EJC) bound to mRNA. Detected in dendritic layer as well as the nuclear and cytoplasmic (somatic) compartments of neurons. Colocalizes with STAU1 and FMR1 in dendrites.
  • Information by UniProt
  • Database links
  • Alternative names
    • ATP-dependent RNA helicase DDX48 antibody
    • ATP-dependent RNA helicase eIF4A-3 antibody
    • DDX48 antibody
    • DEAD box protein 48 antibody
    • eIF-4A-III antibody
    • eIF4A-III antibody
    • EIF4A3 antibody
    • eIF4AIII antibody
    • Eukaryotic initiation factor 4A-III antibody
    • Eukaryotic initiation factor 4A-like NUK-34 antibody
    • Eukaryotic translation initiation factor 4A isoform 3 antibody
    • hNMP 265 antibody
    • IF4A3_HUMAN antibody
    • NMP 265 antibody
    • NMP265 antibody
    • Nuclear matrix protein 265 antibody
    • NUK34 antibody
    see all

Images

  • Anti-eIF4A3 antibody (ab155804) at 1/1000 dilution + Raji whole cell lysate at 30 µg

    Predicted band size: 47 kDa



    10% SDS PAGE
  • Immunofluorescence analysis of paraformaldehyde-fixed A431 cells labeling eIF4A3 with ab155804 at 1/500 dilution (green). Bottom image shows costaining with Hoechst 33342 (blue).

References

ab155804 has not yet been referenced specifically in any publications.

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Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"

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