Kistler J, Duncombe Y, Laemmli U K
J Cell Biol. 1984 Dec;99(6):1981-8. doi: 10.1083/jcb.99.6.1981.
Using monoclonal antibodies as probes, we have characterized three antigens with respect to localization in the nucleolus, molecular weight and solubility. Two proteins, of 110,000 and 94,000 apparent molecular weight, were found associated with the ribonucleoprotein fibers. A third protein, with a molecular weight of 40,000, was accumulated at the nucleolar periphery, was present in the nucleoplasm, and may be involved in pre-ribosome maturation and transport.
我们使用单克隆抗体作为探针,从核仁定位、分子量和溶解性方面对三种抗原进行了表征。发现两种表观分子量分别为110,000和94,000的蛋白质与核糖核蛋白纤维相关。第三种蛋白质分子量为40,000,聚集在核仁周边,存在于核质中,可能参与核糖体前体的成熟和运输。