Lag-3 / APC / REA351

Product Details

Description	Clone REA351 recognizes the human CD223 antigen, a single-pass type I membrane protein also known as lymphocyte activation gene 3 protein (LAG-3). CD223 is a CD4 homolog with four extracellular Ig superfamily domains. Similar to CD4, CD223 oligomerizes at the surfaces of T cells and binds to MHC II on antigen presenting cells but with significantly higher affinity than CD4. CD223 is expressed on activated CD4+ and CD8+ T lymphocytes where it associates with the CD3–TCR complex at the cell surface and negatively regulates signal transduction. As a consequence, it negatively regulates T cell proliferation, function, and homeostasis. There is also increasing evidence of its involvement in regulatory function of tumor-infiltrated T cells in cancer, such as in Hodgkin’s lymphomas and in prostate cancer. CD223 is also expressed on activated NK cells, B cells, and plasmacytoid dendritic cells. \| Additional information: Clone REA351 displays negligible binding to Fc receptors.
Conjugate	APC
Clone	REA351
Target Species	Human
Applications	FC, MICS (MACSima Imaging Cyclic Staining), IF, IHC
Supplier	Miltenyi Biotec
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About Lag-3
Lymphocyte-activation protein 3 belongs to Ig superfamily and contains 4 extracellular Ig-like domains. The LAG3 gene contains 8 exons. The sequence data, exon/intron organization, and chromosomal localization all indicate a close relationship of LAG3 to CD4. [provided by RefSeq, Jul 2008]

About APC
Allophycocyanin (APC) is a fluorescent protein derived from cyanobacteria and red algae and a potent donor fluorophore to create tandem dyes that can be excited off the 633-640 nm laser. APC has an excitation peak at 650 nm and a emission peak at 660 nm.

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