Overview

  • Product name

    Anti-BAFF antibody [EPR19704]
    See all BAFF primary antibodies
  • Description

    Rabbit monoclonal [EPR19704] to BAFF
  • Host species

    Rabbit
  • Tested applications

    Suitable for: ICC/IF, IP, WBmore details
  • Species reactivity

    Reacts with: Human
  • Immunogen

    Recombinant fragment within Human BAFF aa 50 to the C-terminus. The exact sequence is proprietary.
    Database link: Q9Y275

  • Positive control

    • WB: HEK-293 transfected with a GFP-Myc tagged BAFF vector whole cell lysate; U937 whole cell lysate. ICC/IF: 293T cells transfected with a GFP-tagged BAFF expression construct. IP: U937 whole cell lysate.
  • General notes

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

    This product is a recombinant rabbit monoclonal antibody.

Properties

Applications

Our Abpromise guarantee covers the use of ab203791 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
ICC/IF 1/100.
IP 1/30.
WB 1/1000. Detects a band of approximately 31, 29, 17 kDa (predicted molecular weight: 31 kDa).

Target

  • Function

    Cytokine that binds to TNFRSF13B/TACI and TNFRSF17/BCMA. TNFSF13/APRIL binds to the same 2 receptors. Together, they form a 2 ligands -2 receptors pathway involved in the stimulation of B-and T-cell function and the regulation of humoral immunity. A third B-cell specific BAFF-receptor (BAFFR/BR3) promotes the survival of mature B-cells and the B-cell response.
  • Tissue specificity

    Abundantly expressed in peripheral blood Leukocytes and is specifically expressed in monocytes and macrophages. Also found in the spleen, lymph node, bone marrow, T-cells and dendritic cells. A lower expression seen in placenta, heart, lung, fetal liver, thymus, and pancreas.
  • Sequence similarities

    Belongs to the tumor necrosis factor family.
  • Post-translational
    modifications

    The soluble form derives from the membrane form by proteolytic processing.
    N-glycosylated.
  • Cellular localization

    Secreted and Cell membrane.
  • Information by UniProt
  • Database links

  • Alternative names

    • ApoL related ligand TALL 1 antibody
    • B cell Activating Factor antibody
    • B lymphocyte stimulator antibody
    • B-cell-activating factor antibody
    • BAFF antibody
    • BLyS antibody
    • CD 257 antibody
    • CD257 antibody
    • CD257 antigen antibody
    • Delta BAFF antibody
    • Dendritic cell derived TNF like molecule antibody
    • Dendritic cell-derived TNF-like molecule antibody
    • DTL antibody
    • DTL precursor antibody
    • PRO738 antibody
    • soluble form antibody
    • TALL 1 antibody
    • TALL-1 antibody
    • TALL1 antibody
    • THANK antibody
    • TN13B_HUMAN antibody
    • TNF and APOL related leukocyte expressed ligand 1 antibody
    • TNF homolog that activates apoptosis antibody
    • TNF homolog that activates apoptosis NKFB and JNK. antibody
    • TNF- and APOL-related leukocyte expressed ligand 1 antibody
    • TNFSF13B antibody
    • TNFSF20 antibody
    • TNLG7A antibody
    • Tumor necrosis factor (ligand) superfamily member 13b antibody
    • Tumor necrosis factor ligand 7A antibody
    • Tumor necrosis factor ligand superfamily member 13b antibody
    • Tumor necrosis factor ligand superfamily member 20 antibody
    • Tumor necrosis factor like protein ZTNF4 antibody
    • Tumor necrosis factor superfamily member 13B antibody
    • UNQ401 antibody
    • ZTNF4 antibody
    see all

Images

  • All lanes : Anti-BAFF antibody [EPR19704] (ab203791) at 1/5000 dilution

    Lane 1 : Empty vector with GFP-Myc tag (vector control) transfected HEK-293 (Human epithelial cell line from embryonic kidney) whole cell lysate
    Lane 2 : HEK-293 (Human epithelial cell line from embryonic kidney) transfected with a GFP-Myc tagged BAFF vector whole cell lysate

    Lysates/proteins at 10 µg per lane.

    Secondary
    All lanes : Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/100000 dilution

    Predicted band size: 31 kDa
    Observed band size: 57 kDa
    why is the actual band size different from the predicted?


    Exposure time: 1 second


    Blocking/Dilution buffer: 5% NFDM/TBST.

     

  • Anti-BAFF antibody [EPR19704] (ab203791) at 1/1000 dilution + U937 (Human histiocytic lymphoma cell line) whole cell lysate at 10 µg

    Secondary
    Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/20000 dilution

    Predicted band size: 31 kDa
    Observed band size: 17,29,31 kDa why is the actual band size different from the predicted?


    Exposure time: 30 seconds


    Blocking/Dilution buffer: 5% NFDM/TBST.

    Two isoforms have been described in literature (PMID: 12867412).

  • Immunofluorescent analysis of 4% paraformaldehyde-fixed, 0.1% Triton X-100 permeabilized 293T (Human epithelial cell line from embryonic kidney) cells labeling BAFF with ab203791 at 1/100 dilution, followed by Goat Anti-Rabbit IgG (Alexa Fluor® 647) (ab150079) secondary antibody at 1/1000 dilution.

    Confocal image showing positive staining on 293T cells transfected with a GFP-tagged BAFF expression construct.

    The nuclear counter stain is DAPI (blue).

    Tubulin is detected with ab195889 (Anti-alpha Tubulin antibody [DM1A] - Microtubule Marker (Alexa Fluor® 594)) at 1/200 dilution (red).

    Secondary antibody only control: Used PBS instead of primary antibody, secondary antibody is ab150079 at 1/1000 dilution.

    ICC/IF was also performed on a few cell lines including U937, no signal was detected.

  • BAFF was immunoprecipitated from 0.35 mg of U937 (Human histiocytic lymphoma cell line) whole cell lysate with ab203791 at 1/30 dilution. Western blot was performed from the immunoprecipitate using ab203791 at 1/500 dilution. VeriBlot for IP Detection Reagent (HRP) (ab131366), was used for detection at 1/1000 dilution.

    Lane 1: U937 whole cell lysate, 10µg (Input).

    Lane 2: ab203791 IP in U937 whole cell lysate.

    Lane 3: Rabbit IgG,monoclonal [EPR25A]-Isotype Control (ab172730) instead of ab203791 in U937 whole cell lysate.

    Blocking and dilution buffer and concentration: 5% NFDM/TBST.

    Exposure time: 30 seconds.

References

ab203791 has not yet been referenced specifically in any publications.

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