• Product nameAnti-G3BP antibody
    See all G3BP primary antibodies
  • Description
    Rabbit polyclonal to G3BP
  • SpecificityThis antibody recognizes G3BP
  • Tested applicationsSuitable for: WBmore details
  • Species reactivity
    Reacts with: Human
    Predicted to work with: Mouse, Rat, Cow, Dog
  • Immunogen

    A region within synthetic peptide: QEESEEEVEE PEERQQTPEV VPDDSGTFYD QAVVSNDMEE HLEEPVAEPE, corresponding to N terminal amino acids 146-195 of Human G3BP

  • Positive control
    • HepG2 cell lysate



Our Abpromise guarantee covers the use of ab48739 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 Use a concentration of 2.5 µg/ml. Detects a band of approximately 58 kDa (predicted molecular weight: 51 kDa). Good results were obtained when blocked with 5% non-fat dry milk in 0.05% PBS-T.


  • FunctionMay be a regulated effector of stress granule assembly. Phosphorylation-dependent sequence-specific endoribonuclease in vitro. Cleaves exclusively between cytosine and adenine and cleaves MYC mRNA preferentially at the 3'-UTR. ATP- and magnesium-dependent helicase. Unwinds preferentially partial DNA and RNA duplexes having a 17 bp annealed portion and either a hanging 3' tail or hanging tails at both 5'- and 3'-ends. Unwinds DNA/DNA, RNA/DNA, and RNA/RNA substrates with comparable efficiency. Acts unidirectionally by moving in the 5' to 3' direction along the bound single-stranded DNA.
  • Tissue specificityUbiquitous.
  • Sequence similaritiesContains 1 NTF2 domain.
    Contains 1 RRM (RNA recognition motif) domain.
  • DomainThe NTF2 domain mediates multimerization.
  • Post-translational
    Phosphorylated exclusively on serine residues. Hyperphosphorylated in quiescent fibroblasts. Hypophosphorylation leads to a decrease in endoribonuclease activity (By similarity). RASA1-dependent phosphorylation of Ser-149 induces a conformational change that prevents self-association. Dephosphorylation after HRAS activation is required for stress granule assembly. Ser-149 phosphorylation induces partial nuclear localization.
    Arg-435 is dimethylated, probably to asymmetric dimethylarginine.
  • Cellular localizationCytoplasm. Cytoplasm > cytosol. Cell membrane. Nucleus. Cytoplasmic in proliferating cells, can be recruited to the plasma membrane in exponentially growing cells (By similarity). Cytosolic and partially nuclear in resting cells. Recruited to stress granules (SGs) upon either arsenite or high temperature treatment. Recruitment to SGs is influenced by HRAS.
  • Information by UniProt
  • Database links
  • Alternative names
    • ATP dependent DNA helicase VIII antibody
    • ATP-dependent DNA helicase VIII antibody
    • G3BP antibody
    • G3BP-1 antibody
    • G3bp1 antibody
    • G3BP1_HUMAN antibody
    • GAP binding protein antibody
    • GAP SH3 domain binding protein 1 antibody
    • GAP SH3 domain-binding protein 1 antibody
    • GTPase activating protein (SH3 domain) binding protein 1 antibody
    • hDH VIII antibody
    • Human DNA helicase VIII antibody
    • MGC111040 antibody
    • Ras GTPase activating protein binding protein 1 antibody
    • Ras GTPase activating protein SH3 domain binding protein antibody
    • Ras GTPase-activating protein-binding protein 1 antibody
    • RasGAP associated endoribonuclease G3BP antibody
    see all

Anti-G3BP antibody images

  • All lanes : Anti-G3BP antibody (ab48739) at 2.5 µg/ml

    Lane 1 : HepG2 cell lysate
    Lane 2 : HepG2 cell lysate with blocking peptide at 2 µg/ml

    Lysates/proteins at 25 µg per lane.

    Predicted band size : 51 kDa
  • Anti-G3BP antibody (ab48739) at 2.5 µg/ml + HepG2 cell lysate at 10 µg with 5% skimmed milk in PBS

    HRP conjugated anti-Rabbit IgG at 1/50000 dilution

    Predicted band size : 51 kDa
    Observed band size : 58 kDa (why is the actual band size different from the predicted?)
    Gel concentration: 12%

References for Anti-G3BP antibody (ab48739)

This product has been referenced in:
  • Borth N  et al. Functional Interaction between Type III-Secreted Protein IncA of Chlamydophila psittaci and Human G3BP1. PLoS One 6:e16692 (2011). ICC/IF ; Human . Read more (PubMed: 21304914) »

See 1 Publication for this product

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