Anti-Mouse Ly-49A PE

Description: This A1 monoclonal antibody reacts with Ly49A, a 44-kDa member of the Ly49 family of type II transmembrane receptors expressed on natural killer (NK) cells. This receptor is present as a disulfide-linked homodimer with C-type lectin extracellular domains. An inhibitory receptor, Ly49A binds MHC class I molecules, such as H-2Dd, H-2Dk, and H-2DP, to inhibit NK-mediated cytotoxicity by triggering phosphorylation of its ITIM domain and recruitment of SHP-1 and SHP-2. Ly49A is expressed on DX5+CD3- NK cells and DX5+CD3+ NK T cells, as well as on a population of memory CD8+ T cells in C57BL/6, C57BL/10, and B10 congenic mice.

References: Ortaldo JR, Winkler-Pickett R, Mason AT, Mason LH. The Ly-49 family: regulation of cytotoxicity and cytokine production in murine CD3+ cells. J Immunol. 1998 Feb 1;160(3):1158-65. (A1, FC, Pubmed)

Mason LH, Gosselin P, Anderson SK, Fogler WE, Ortaldo JR, McVicar DW. Differential tyrosine phosphorylation of inhibitory versus activating Ly-49 receptor proteins and their recruitment of SHP-1 phosphatase. J Immunol. 1997 Nov 1;159(9):4187-96.