Kazemie M
Eur J Biochem. 1975 Oct 15;58(2):501-10. doi: 10.1111/j.1432-1033.1975.tb02398.x.
50-S subunits were washed with LiCl solutions of different concentrations. After washing with 1 M LiCl solution the particles lost their ability to attach either to 30-S subunits or to the AUG - 30-S subunit - fMet-tRNAfMet complex or to a poly(U) - 30-S subunit - Phe-tRNAPhe complex. Those proteins which were removed by LiCl were fractionated on a Sephadex G-100 column. Of the fractionated proteins only the combinations L1 and L11 or L1 and L16 were essential for the association of 50-S 1.0 cores (particles prepared by washing 50-S subunits in 1.0 M LiCl) with 30-S subunits. These three proteins were also required for the formation of a stable complex between 50-S 1.0 cores, mRNA, 30-S subunits and aminoacyl-tRNA.
用不同浓度的LiCl溶液洗涤50 - S亚基。用1M LiCl溶液洗涤后,颗粒失去了与30 - S亚基、AUG - 30 - S亚基 - fMet - tRNAfMet复合物或聚(U) - 30 - S亚基 - Phe - tRNAPhe复合物结合的能力。那些被LiCl去除的蛋白质在Sephadex G - 100柱上进行分级分离。在分级分离的蛋白质中,只有L1和L11或L1和L16的组合对于50 - S 1.0核心(通过在1.0M LiCl中洗涤50 - S亚基制备的颗粒)与30 - S亚基的结合是必需的。这三种蛋白质也是在50 - S 1.0核心、mRNA、30 - S亚基和氨酰 - tRNA之间形成稳定复合物所必需的。