Recombinant Anti-LAG-3 antibody [EPR20261] (Alexa Fluor® 647) (ab225486)


  • Product name

    Anti-LAG-3 antibody [EPR20261] (Alexa Fluor® 647)
    See all LAG-3 primary antibodies
  • Description

    Rabbit monoclonal [EPR20261] to LAG-3 (Alexa Fluor® 647)
  • Host species

  • Conjugation

    Alexa Fluor® 647. Ex: 652nm, Em: 668nm
  • Tested applications

    Suitable for: ICC/IF, Flow Cytmore details
  • Species reactivity

    Reacts with: Human
  • Immunogen

    Recombinant fragment within Human LAG-3 aa 1-300. The exact sequence is proprietary.
    Database link: P18627

  • Positive control

    • Flow Cyt: HEK-293T transfected with a GFP-tagged human LAG-3 construct. ICC/IF: 293T cells transfected with LAG-3 with GFP tag cells
  • General notes

    This product was previously labelled as Lymphocyte Activation Gene 3.

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

    Alexa Fluor® is a registered trademark of Molecular Probes, Inc, a Thermo Fisher Scientific Company. The Alexa Fluor® dye included in this product is provided under an intellectual property license from Life Technologies Corporation. As this product contains the Alexa Fluor® dye, the purchase of this product conveys to the buyer the non-transferable right to use the purchased product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). As this product contains the Alexa Fluor® dye the sale of this product is expressly conditioned on the buyer not using the product or its components, or any materials made using the product or its components, in any activity to generate revenue, which may include, but is not limited to use of the product or its components: in manufacturing; (ii) to provide a service, information, or data in return for payment (iii) for therapeutic, diagnostic or prophylactic purposes; or (iv) for resale, regardless of whether they are sold for use in research. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or

    This product is a recombinant rabbit monoclonal antibody.



Our Abpromise guarantee covers the use of ab225486 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.

This product gave a positive signal in 293T cells transfected with LAG3 with GFP tag fixed with 4% formaldehyde (10 min)

Flow Cyt 1/500.


  • Function

    Involved in lymphocyte activation. Binds to HLA class-II antigens.
  • Tissue specificity

    On cell surface of activated NK and T-lymphocytes.
  • Sequence similarities

    Contains 3 Ig-like C2-type (immunoglobulin-like) domains.
    Contains 1 Ig-like V-type (immunoglobulin-like) domain.
  • Cellular localization

  • Information by UniProt
  • Database links

  • Alternative names

    • CD223 antibody
    • CD223 antigen antibody
    • FDC protein antibody
    • LAG-3 antibody
    • Lag3 antibody
    • LAG3_HUMAN antibody
    • Lymphocyte activating 3 antibody
    • Lymphocyte activation gene 3 antibody
    • Lymphocyte activation gene 3 protein antibody
    • Protein FDC antibody
    see all


  • ab225486 staining LAG-3 in 293T cells transfected with LAG-3 with GFP tag. The cells were fixed with 4% formaldehyde (10 min), permeabilized with 0.1% Triton X-100 for 5 minutes and then blocked with 1% BSA/10% normal goat serum/0.3M glycine in 0.1% PBS-Tween for 1h. The cells were then incubated overnight at +4°C with ab225486 at 1/100 dilution (pseudocolored in white) and ab195889, Mouse monoclonal to alpha Tubulin (Alexa Fluor® 594), at 1/250 dilution (shown in red). Nuclear DNA was labelled with DAPI (shown in blue) and GFP is shown in green.

    Image was taken with a confocal microscope (Leica-Microsystems, TCS SP8).

  • Flow cytometric analysis of HEK-293T (Human epithelial cell line from embryonic kidney) cells transfected with a GFP-tagged human LAG3 construct labelling LAG-3 with ab225486 at 1/500 dilution (right) compared with Rabbit IgG (monoclonal) Alexa Fluor® 647 ab199093 (left).

    Note: Fresh cells without fixation and permeabilization were used to perform FC testing. Only GFP positive population results in LAG3 positive staining (Q2, right panel).


ab225486 has not yet been referenced specifically in any publications.

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