RNA Research

New RNA research study results from University of Bern described

Published in Genetics and Environmental Business Week, August 13th, 2009

According to recent research from Bern, Switzerland, "The mitochondrion of the parasitic protozoon Trypanosoma brucei does not encode any tRNAs. This deficiency is compensated for by partial import of nearly all of its cytosolic tRNAs."

"Most trypanosomal aminoacyl-tRNA synthetases are encoded by single copy genes, suggesting the use of the same enzyme in the cytosol and in the mitochondrion. However, the T. brucei genome encodes two distinct genes for eukaryotic aspartyl-tRNA synthetase (AspRS), although the cell has a single tRNA(Asp) isoacceptor only. Phylogenetic analysis showed that the two T. brucei AspRSs evolved from a duplication early in kinetoplastid...

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Source: Genetics and Environmental Business Week (2009-08-13)

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