抗LAG-3抗体(Anti-LAG-3, Goat-Poly, Biotin antibody)

掲載日情報:2019/10/21 現在Webページ番号:31505

LAG-3に対する抗体(Anti-LAG-3, Goat-Poly, Biotin )です。
本製品は研究用です。研究用以外には使用できません。

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Anti-LAG-3, Goat-Poly, Biotin
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説明文
別名:CD223
Genbank No: 3902
Protein Accession No: P18627
法規制等
保存条件 -20℃ 法規備考
抗原種 Human 免疫動物 Goat クラス IgG 標識 Biotin
交差性 Human 適用 FCM,Western Blot
クロナリティ Polyclonal フォーマット 性状 Antigen Affinity Purified 吸収処理
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[在庫・価格 :2026年03月12日 00時01分現在]

※ 表示されている納期は弊社に在庫が無く、取り寄せた場合の納期目安となります。

Anti-LAG-3, Goat-Poly, Biotin

文献数: 1

説明文 別名:CD223
Genbank No: 3902
Protein Accession No: P18627
法規制等
保存条件 -20℃ 法規備考
抗原種 Human 免疫動物 Goat
交差性 Human 適用 FCM,Western Blot
標識 Biotin 性状 Antigen Affinity Purified
吸収処理 クラス IgG
クロナリティ Polyclonal フォーマット
掲載カタログ

製品記事
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Product Details

Species ReactivityHuman
LabelBiotin
ImmunogenMouse myeloma cell line NS0-derived recombinant human LAG-3Leu23-Leu450Accession # P18627
SourcePolyclonal Goat IgG
PurificationAntigen Affinity-purified
SpecificityDetects human LAG-3 in Western blots. In Western blots, less than 1% cross-reactivity with recombinant mouse LAG‑3 is observed.


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Applications and Data

 Recommended
Concentration
Sample
Western Blot0.1 µg/mLRecombinant Human LAG‑3 Fc Chimera (Catalog # 2319-L3)
Flow Cytometry2.5 µg/106 cellsSee below


Flow Cytometry
Detection of LAG‑3 in CD3+ Human PBMCs by Flow Cytometry.
CD3+ Human peripheral blood mononuclear cells (PBMCs) treated with 5 μg/mL PHA for 5 days were stained with Mouse Anti-Human CD3 epsilon PE‑conjugated Monoclonal Antibody (Catalog # FAB100P) and either (A) Goat Anti-Human LAG‑3 Biotinylated Antigen Affinity-purified Polyclonal Antibody (Catalog # BAF2319) or (B) Normal Goat IgG Biotinylated Control (Catalog # BAF108) followed by Streptavidin-Allophycocyanin (Catalog # F0050).


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Related Product & Information

BackgroundLAG-3
background_contentBackground:
LAG-3
LAG-3 (Lymphocyte activation gene-3), also known as CD223, 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 and CD4 molecules share < 20% aa sequence homology but have a similar structure (1, 2). Both molecules bind to MHC class II. LAG-3 binds to MHC class II with higher affinity compared to CD4. Both LAG-3 and CD4 genes are located on the distal part of the short arm of chromosome 12. LAG-3 is an activation-induced molecule, expressed on activated T cells and NK cells, but not on resting T cells. Studies using LAG-3 -/- mice have shown significant delay of T cell apoptosis following antigen stimulation and increased size of memory T cells pool following infection (3, 4). It also has been reported that anti-LAG-3 antibodies up-regulate T cell activation by blocking interaction of LAG-3 and MHC class II. The study has demonstrated that LAG-3 is selectively expressed on activated CD4+CD25+ TReg cells and plays a role in their suppressive activity (5). This evidence indicated, unlike the interaction of CD4 with MHC class II that plays a positive role in T cell activation, LAG-3 binds to MHC class II and negatively regulates T cell activation through LAG-3 signaling. On the other hand, studies have shown that binding of LAG-3 to MHC class II molecules on antigen presenting cells induce maturation of dendritic cells and cytokine secretion by monocytes through MHC class II signal transduction (6). Taken together, LAG-3 may have two major functions, it negatively regulates T cells activation through LAG-3 signaling and stimulates antigen presenting cells which express MHC class II.


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Citations

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.
  1. Chronic exposure to Plasmodium falciparum is associated with phenotypic evidence of B and T cell exhaustion.
    Authors: Illingworth, Joseph, Butler, Noah S, Roetynck, Sophie, Mwacharo, Jedida, Pierce, Susan K, Bejon, Philip, Crompton, Peter D, Marsh, Kevin, Ndungu, Francis
    J Immunol, 2013;190(3):1038-47.
    Species: Human
    Sample Type: Whole Cells
    Application: Flow



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