The unkown receptor of 4IgB7-H3 on activaton T cells was detected by the fusion protein with FACS,and the costimulatory effection to T cell was measured by MTT.

• 以4IgB7-H3-Fc蛋白检测活化T细胞表面未知受体的表达,通过MTT方法分析4IgB7-H3-Fc融合蛋白对T细胞的共刺激作用。