The Low-Molecular-Weight RNAs of Plant Ribosomes: Their Structure, Function and Evolution
Why do the ribosomes of chloroplasts, mitochondria and the cytoplasm in plants differ from one another although they apparently have a common function in protein synthesis? Is this merely the result of their separate origins? If so, why have these differences been preserved? Does each type of ribosome have unique features which make it especially well fitted to synthesise particular proteins or does it reflect that, because of differences in factors such as pH or the concentration of particular ions, one type of ribosome could not work properly in the organelles and in the cytoplasm? A detailed comparison of the structures of the different types of plant ribosomes and the way in which they function forms the basis for trying to answer these questions.
KeywordsBacterial Ribosome Ribonuclease Digestion Cytoplasmic Ribosome Mitochondrial Ribosome Chloroplast Ribosome
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