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Content with the tag: “ribozyme”
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The Ribozyme in Action
Small trans-aminoacylating RNA complexes. (A) C3 RNA. (B) Intermediate trans complexes. (C) Final GUGGC/GCCU complex.NIH-funded scientists at the University of Colorado, Boulder have demonstrated that a five-nucleotide-long ribozyme can catalyze a key reaction needed to synthesize proteins, bearing implications for the origin of life on Earth. Their findings, published in a recent PNAS article, present further evidence that the first catalytic macromolecules could have been RNA molecules. Since they are simpler than protein-based enzymes, they “were likely to exist early in the formation of the first life forms, and are capable of catalyzing chemical reactions without proteins being present,” said Tom Blumenthal, a professor and chair...
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March 15, 2010 / Posted by: Daniella Scalice
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