mcd99Characterization of the interaction between mCD99 and mCD99L2. (A) Diagram of the DNA constructs for the expression of mCD99 or mCD99L2 proteins tagged with Myc, Flag, or HAIn contrast, the anti-mCD99 antibody recognizes the mCD99-Fc used to immunize the rabbits (arrowhead, running at the expected M r of ∼ 75 kD). Display full size. Fure 4