The MagniSort™ Mouse CD4 T cell Enrichment Kit is designed for the magnetic separation of mouse CD4 T cells by negative selection. It has been optimized for the isolation of mouse CD4 T cells from spleens or lymph nodes utilizing a biotinylated antibody cocktail and streptavidin-coated magnetic beads. Undesired cells are bound by antibody and then magnetic beads that, when placed in a magnetic field, leave CD4 T cells untouched and free in solution.