Lymphocyte activation gene 3 protein (UniProt Q61790; also known as CD223, LAG-3) is encoded by the Lag3 gene (Gene ID 16768) in murine species. LAG-3 is an inhibitory T-cell surface molecule that modulates T-cell activation and homeostasis. LAG-3 co-localizes with CD8 and CD4 upon TCR engagement and alters TCR signaling. LAG-3 suppresses homeostasis proliferation (HP) of both lymphocytes and some dendritic cell populations in vivo, and enhanced HP is observed in mice deficient in LAG-3. LAG-3 signaling is shown to negatively regulate STAT5 phosphorylation in activated T cells, and no enhancement of HP was seen upon LAG-3 blockade in mice deficient in both STAT5a and STAT5b. Murine LAG-3 is produced with a signal peptide sequence (a.a. 1-22), the removal of which yields the mature protein with a large extracellular region (a.a. 23-442), followed by a transmembrane segment (a.a. 443-463) and a cytoplasmic tail (a.a. 464-521). The extracellular portion contains a V-type Ig-like domain (a.a. 37-163), followed by three C2-type Ig-like domains (a.a. 165-246, 258-341, and 345-412) and elven tandem repeats of 2-amino acid E-X seqeunce at its C-terminal end (a.a. 493-518).
Synonyms: Lymphocyte activation gene 3 protein, CD223, LAG-3
Application: This Anti-LAG3 Antibody, clone 4-10-C9 is validated for use in Flow Cytometry, Immunocytochemistry for the detection of LAG3.
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Other Notes: Concentration: Please refer to lot specific datasheet.