Soeiro R, Darnell J E
J Cell Biol. 1970 Mar;44(3):467-75. doi: 10.1083/jcb.44.3.467.
Heterogeneous nuclear RNA (HnRNA) and mRNA from cytoplasmic polyribosomes of HeLa cells have been compared by RNA-DNA hybridization tests. 1 microg of HeLa cell DNA binds 0.05-0.10 microg of either HnRNA or mRNA. In addition, HeLa DNA that is preexposed to unlabeled HnRNA was found to have a reduced capacity to bind either HnRNA or mRNA. The results are compatible with considerable sequence similarity in the two types of RNA but, as is discussed, firm conclusions are precluded by imperfections of the hybridization reaction as presently employed.
通过RNA-DNA杂交试验,对来自HeLa细胞胞质多核糖体的不均一核RNA(HnRNA)和mRNA进行了比较。1微克HeLa细胞DNA可结合0.05 - 0.10微克的HnRNA或mRNA。此外,发现预先与未标记的HnRNA接触过的HeLa DNA结合HnRNA或mRNA的能力降低。这些结果与两种RNA在序列上有相当大的相似性相符,但是,如所讨论的,由于目前所用杂交反应的不完善,无法得出确凿的结论。