Ekert B, Giocanti N
C R Acad Hebd Seances Acad Sci D. 1976 Mar 8;282(10):1053-6.
Gamma irradiation in desaerated conditions of E. coli MRE 600 ribosomes, labelled with C14 uracil, leads to a decrease of extractibility of C14 RNA by lithium chloride 4 M-urea 8 M. On the other hand, the radioactivity of the protein fraction increases with irradiation. These results strongly suggest that RNA-protein cross links are formed in irradiated ribosomes.
在无氧条件下,用C14尿嘧啶标记的大肠杆菌MRE 600核糖体进行伽马射线照射,会导致4M氯化锂-8M尿素对C14 RNA的提取率降低。另一方面,蛋白质组分的放射性随照射而增加。这些结果有力地表明,在受照射的核糖体中形成了RNA-蛋白质交联。