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  • Title: Conformational changes in 16S ribosomal RNA induced by 30S ribosomal subunit proteins from Escherichia coli.
    Author: Bogdanov AA, Zimmermann RA, Wang CC, Ford NC.
    Journal: Science; 1978 Dec 01; 202(4371):999-1001. PubMed ID: 362531.
    Abstract:
    Laser light scattering has been used to evaluate conformational differences between free 16S RNA and several specific protein-16S RNA complexes. Proteins that interact strongly with the 16S RNA early in subunit assembly stabilize the RNA chain against unfolding in 1 mM Mg2+ and actually promote the formation of a more compact teriary structure in 20 mM Mg2+. A vital function of these proteins may therfore consist in altering the configuration of the RNA so that further assembly reactions can take place.
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