LAG-3 Antibody (C9B7W)


Flow Cytometry: LAG-3 Antibody (C9B7W) [NB100-63601] - Staining of CD223 transfected cells with RAT ANTI MOUSE CD223

Product Details

Reactivity MuSpecies Glossary
Applications Flow
1.0 mg/ml

Order Details

LAG-3 Antibody (C9B7W) Summary

Murine CD223 Ig fusion protein
NB100-63601 recognizes murine lymphocyte activation gene-3 (LAG-3), a 70kD activation-induced cell surface molecule that is also referred to as CD223. Murine CD223 is expressed on activated CD4 positive and CD8 positive alpha/beta T lymphocytes and a subset of natural killer (NK) cells. CD223 binds to MHC class II molecules with high affinity and is reported to negatively regulate T cell homeostasis and T cell expansion. Clone C9B7W recognizes an epitope within the D2 domain of CD223. The antibody is reported to block the in vitro function of murine LAG-3 but studies suggest that the antibody does not block binding of LAG-3 to MHC class II (1).
Protein G purified
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Packaging, Storage & Formulations

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.
PBS (pH 7.4)
0.09% Sodium Azide
1.0 mg/ml
Protein G purified


  • Flow Cytometry 1:50-1:200
Theoretical MW
57 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Reactivity Notes

Reacts with Mouse.

Alternate Names for LAG-3 Antibody (C9B7W)

  • CD223 antigen
  • CD223
  • FDC
  • LAG3
  • LAG-3
  • lymphocyte activation gene 3 protein
  • lymphocyte-activation gene 3
  • Protein FDC


This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Product General Protocols

Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.

FAQs for LAG-3 Antibody (NB100-63601). (Showing 1 - 4 of 4 FAQ).

  1. What is the concentration of your biotin conjugated LAG-3 antibody?
    • We actuall do not determine the concentration of our conjugated antibodies but they are usuall 80-100% the concentration of the base product, so the concentration should be at least 0.8 mg/ml.
  2. Can this LAG-3 antibody be used in ELISA?
    • We have not validated this particular LAG-3 antibody for ELISA in mouse; however, it has been cited as being used as a detection antibody in a publicatoin (PMID 15946792).
  3. I'm using your LAG-3 antibody in western blot but the observed band is a different size than the predicted band size, do you know what the bands are?
    • There are several alternative splice varients of LAG-3 that could explain the different sized proteins stained by the LAG-3 antibody. It is also believed that there are two secreted forms of LAG-3, one that is about 36 kDa and another at 52 kDa.
  4. Is this LAG-3 antibody offered in a smaller size that is less expensive?
    • We do not offer a sample size for this particular LAG 3 antibody but we do offer another, AF3329, in a 25 ug sample size.

Secondary Antibodies


Isotype Controls

Other Available Formats

DyLight 405LS Labeled NB100-63601V3

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Contact Information

Product PDFs


Gene Symbol LAG3

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