Ohta N, Sanders M, Newton A
Proc Natl Acad Sci U S A. 1975 Jun;72(6):2343-6. doi: 10.1073/pnas.72.6.2343.
Poly(adenylic acid) sequences have been isolated from the Gram-negative bacterium Caulobacter crescentus. Most of these A-rich tracts are associated with large RNA molecules that constitute an important fraction of the unstable RNA in these bacteria, and, as estimated by poly(U) filter binding, they are not present in the 16S or 23S ribosomal RNA. Preliminary estimates of size from polyacrylamide gel electrophoresis suggest that the majority of the A-rich tracts ranges from 15 to approximately 50 residues in length.
聚腺苷酸序列已从革兰氏阴性细菌新月柄杆菌中分离出来。这些富含A的区域大多与构成这些细菌中不稳定RNA重要部分的大RNA分子相关，并且，通过聚尿苷酸滤膜结合估计，它们不存在于16S或23S核糖体RNA中。聚丙烯酰胺凝胶电泳的初步大小估计表明，大多数富含A的区域长度在15至约50个残基之间。
