论文部分内容阅读
微清蛋白(parvalbumin)为肌肉和脑内一种分子量12000的 Ca~(2+)结合蛋白质,现已从大鼠睾丸中分离获得。利用大鼠微清蛋白 cDNA 探针,在睾丸中显示了微清蛋白 mRNA,表明它在睾丸中合成;睾丸微清蛋白也为编码肌肉微清蛋白的同一基因的产物。用免疫组化法可将微清蛋白定位于 Leydig 细胞和成熟精细胞(1～15期)的顶体区。睾丸甾体生成在大鼠生命过程中有两个活跃阶段:第一阶段高峰出现在出生前3天,
Parvalbumin is a Ca2 + -binding protein with a molecular weight of 12,000 in the muscle and brain. It has been isolated from rat testes. Microalbumin mRNA is shown in the testis using rat microtiter cDNA probes, indicating that it is synthesized in the testes; testicular microglobin is also the product of the same gene encoding muscle microalbumin. Micro-albumin can be localized to the acrosome region of Leydig cells and mature sperm cells (stage 1 to 15) by immunohistochemistry. Testicular steroidogenesis has two active phases during the life of the rat: the first phase of the peak occurs three days before birth,