Mouse LAG-3 Antibody (631501)

R&D Systems | Catalog # MAB33281

R&D Systems
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Key Product Details

Validated by

Biological Validation

Species Reactivity

Mouse

Applications

Flow Cytometry, CyTOF-ready

Label

Unconjugated

Antibody Source

Monoclonal Rat IgG2B Clone # 631501
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Product Specifications

Immunogen

NS0 mouse myeloma cell line transfected with mouse LAG-3
Ser23-Leu442
Accession # Q61790

Specificity

Detects mouse LAG-3 in direct ELISAs. In direct ELISAs, no cross-reactivity with recombinant human LAG-3 is observed.

Clonality

Monoclonal

Host

Rat

Isotype

IgG2B

Scientific Data Images for Mouse LAG-3 Antibody (631501)

Detection of LAG-3 antibody in Mouse Splenocytes antibody by Flow Cytometry.

Detection of LAG-3 in Mouse Splenocytes by Flow Cytometry.

Mouse splenocytes were treated for 72 hours with 50 ng/mL PMA and 500 ng/mL Ca2+Ionomycin then stained with Rat Anti-Mouse LAG-3 Monoclonal Antibody (Catalog # MAB33281, filled histogram) or isotype control antibody (MAB0061, open histogram), followed by Allophycocyanin-conjugated Anti-Rat IgG Secondary Antibody (F0113).

Detection of LAG‑3 in CTLL‑2 mouse cytotoxic T cell line by Flow Cytometry

CTLL‑2 mouse cytotoxic T cell line were stained with Rat Anti-Mouse LAG‑3 Monoclonal Antibody (Catalog # MAB33281, filled histogram) or isotype control antibody (Catalog # MAB0061, open histogram) followed by Allophycocyanin-conjugated Anti-Rat IgG Secondary Antibody (Catalog # F0113). View our protocol for Staining Membrane-associated Proteins.

Applications for Mouse LAG-3 Antibody (631501)

Application
Recommended Usage

CyTOF-ready

Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

Flow Cytometry

2.5 µg/106 cells
Sample: Mouse splenocytes

Flow Cytometry Panel Builder

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Advanced Features

  • Spectra Viewer - Custom analysis of spectra from multiple fluorochromes
  • Spillover Popups - Visualize the spectra of individual fluorochromes
  • Antigen Density Selector - Match fluorochrome brightness with antigen density
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Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Reconstitution

Sterile PBS to a final concentration of 0.5 mg/mL. For liquid material, refer to CoA for concentration.


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Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. See Certificate of Analysis for details.
*Small pack size (-SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Calculators

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: LAG-3

LAG-3 (Lymphocyte activation gene-3; CD223 in the human) is a member of the immunoglobulin superfamily (IgSF). The mature LAG-3 protein is a 496 amino acid (aa) membrane protein with a 421 aa extracellular region which contains four IgSF domains, a 21 aa transmembrane region and a 54 aa cytoplasmic region. LAG-3 shares < 20% amino acid sequence homology with CD4, but has similar structure and binds to MHC class II with higher affinity.  The mouse LAG-3 extracellular region shares 69% aa sequence identity with human LAG-3.

Long Name

Lymphocyte-activation Gene 3

Alternate Names

CD223, LAG3

Entrez Gene IDs

3902 (Human); 16768 (Mouse); 297596 (Rat); 102122272 (Cynomolgus Monkey)

Gene Symbol

LAG3

UniProt

Additional LAG-3 Products

Product Documents for Mouse LAG-3 Antibody (631501)

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot or batch number in the search box below.

Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Mouse LAG-3 Antibody (631501)

For research use only

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FAQs for Mouse LAG-3 Antibody (631501)

Showing  1 - 22 FAQs Showing All
  • Q: Can this LAG-3 antibody be used in ELISA? 

    A: 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).

  • Q: 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?

    A: 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.

  • Q: Can this LAG-3 antibody be used in ELISA? 

    A: 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).

  • Q: 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?

    A: 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.

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