Objective To detect the possible epitopes of 52 000 dalton Ro/SSA autoantigen and selectively clone the antigen fragment containing the leucine zipper motif.

• 目的预测相对分子量为52000的Ro/SSA自身抗原的可能表位,并选择性克隆含亮氨酸拉链氨基酸序列的抗原片段。