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大肠杆菌核糖体16S - RNA大RNA片段的构象。一项X射线和中子小角散射研究。

The conformation of a large RNA fragment from the E.coli ribosomal 16S-RNA. An X-ray and neutron small-angle scattering study.

作者信息

Osterberg R, Sjöberg B, Garrett G A, Müller R

出版信息

Nucleic Acids Res. 1980 Dec 20;8(24):6221-31. doi: 10.1093/nar/8.24.6221.

Abstract

A large 12S RNA fragment which constitutes the 5' two-thirds of 16S-RNA from the E. coli 30S subunit has been investigated by small-angle X-ray and neutron scattering. The results indicate that in reconstitution buffer the 12S-RNA fragment has a molecular weight of 270,000 +/- 20,000 and a radius of gyration of 7.1 nm. The scattering data are compatible with the RNA being folded into two major domains with the shapes of two adjacent, quite similar cylinders.

摘要

一个构成大肠杆菌30S亚基16S - RNA 5'三分之二的大12S RNA片段已通过小角X射线和中子散射进行了研究。结果表明,在重构缓冲液中,12S - RNA片段的分子量为270,000±20,000,回转半径为7.1纳米。散射数据与RNA折叠成两个主要结构域相符,这两个结构域的形状为两个相邻且非常相似的圆柱体。

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