Jäger S, Fuhrmann O, Heck C, Hebermehl M, Schiltz E, Rauhut R, Klug G
Institut für Mikro- und Molekularbiologie, Justus Liebig Universität Giessen, Heinrich-Buff-Ring 26-32, 35392 Giessen, Germany.
Nucleic Acids Res. 2001 Nov 15;29(22):4581-8. doi: 10.1093/nar/29.22.4581.
An RNA degrading, high molecular weight complex was purified from Rhodobacter capsulatus. N-terminal sequencing, glycerol-gradient centrifugation, and immunoaffinity purification as well as functional assays were used to determine the physical and biochemical characteristics of the complex. The complex comprises RNase E and two DEAD-box RNA helicases of 74 and 65 kDa, respectively. Most surprisingly, the transcription termination factor Rho is a major, firmly associated component of the degradosome.
从荚膜红细菌中纯化出一种具有RNA降解功能的高分子量复合物。利用N端测序、甘油梯度离心、免疫亲和纯化以及功能测定来确定该复合物的物理和生化特性。该复合物包含核糖核酸酶E以及分别为74 kDa和65 kDa的两种DEAD盒RNA解旋酶。最令人惊讶的是,转录终止因子Rho是降解体的主要且紧密结合的组分。