本文用核糖体蛋白制备多克隆抗体,对分离的大鼠肝核糖体亚单位进行了夹心法负染色的电镜研究。结果显示在大鼠肝核糖体的小亚单位表面有七种核糖体蛋白,其中三种(S13/16、S19、S24)为首次报道。七种蛋白中有六种位于40S核糖体亚单位的外表面,只有一种(S24)见于内表面。综合前人的研究结果,现已在40S核糖体表面定位 In this paper, polyclonal antibody was prepared from ribosomal protein and the isolated rat hepatic ribosome subunits were electron microscopically studied by sandwich negative staining. Seven ribosomal proteins were found on the surface of the small subunit of rat liver ribosomes. Three of them (S13 / 16, S19, S24) were reported for the first time. Six of the seven proteins are located on the outer surface of the 40S ribosomal subunit, and only one (S24) is found on the inner surface. Based on the results of previous studies, it is now located on the surface of 40S ribosomes