小鼠H-2复合体S区至少控制两个结构与抗原上相关的血清蛋白质.此区的确定原来基于一功能未知的血清蛋白——血清物质(Serum substa-nee,Ss)——的血清量的变化,稍后发现Ss的一个性限性变种,并也定位于S区。此蛋白定名为性限蛋白(sex-limitel protein,slp),并发现位于Ss一个亚群上,而且仅见于雄鼠。开始认为系Ss一 The mouse H-2 complex, S region, controls at least two antigen-related serum proteins of the structure This region was originally determined based on the serum of a functionally unknown serum protein (Serum substa-nee, Ss) Changes in the amount of Ss later found a sexual limited variant, and also located in the S zone. This protein was named sex-limitel protein (slp) and found to be located on a subset of Ss and only found in males. Began to think that the Department of Ss