The 49-H4 antibody reacts with the ThB antigen (Ly-6D), which is a 15- kDa GPI-anchored protein of the Ly-6 multigene family. ThB has been detected on cortical thymocytes, small sIg- Thy-1- and sIg+ lymphoid cells in the bone marrow, thymic medullary epithelial cells, all epidermal layers (except the stratum corneum), and on peripheral B lymphocytes, but not on peripheral T lymphocytes. It has been noted that there is strain-to-strain variation in the expression of the ThB antigen on splenic B cells, those of strains with the Ly-6.2 haplotype (e.g., AKR, C57BL, DBA/2, SJL, SWR) stain more intensely with anti- ThB reagents than those of Ly-6.1 strains (e.g., A, BALB/c, CBA, C3H/He, NZB), and B cells of hybrids of Ly-6.1 and Ly-6.2 strains stain with intermediate intensity. The proportions of the ThB+ B cells and thymocytes do not differ significantly among strains.
BD Pharmingen™ Purified Rat Anti-Mouse Ly-6D - Purified - Clone 49-H4 - Isotype Rat IgG2c, κ - Reactivity Ms - 0.1 mg
Purification
The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography.
Gumley, McKenzie, Kozak, Sandrin: "Isolation and characterization of cDNA clones for the mouse thymocyte B cell antigen (ThB)." dans: Journal of immunology (Baltimore, Md. : 1950), Vol. 149, Issue 8, pp. 2615-8, (1992) (PubMed).
Godfrey, Izon, Tucek, Wilson, Boyd: "The phenotypic heterogeneity of mouse thymic stromal cells." dans: Immunology, Vol. 70, Issue 1, pp. 66-74, (1990) (PubMed).
Matossian-Rogers, Rogers, Ledbetter, Herzenberg: "Molecular weight determination of two genetically linked cell surface murine antigens: ThB and Ly-6." dans: Immunogenetics, Vol. 15, Issue 6, pp. 591-9, (1982) (PubMed).
Eckhardt, Herzenberg: "Monoclonal antibodies to ThB detect close linkage of Ly-6 and a gene regulating ThB expression." dans: Immunogenetics, Vol. 11, Issue 3, pp. 275-91, (1981) (PubMed).
Antigène
LY6D
(Lymphocyte Antigen 6 Complex, Locus D (LY6D))