The architecture of eukaryotic translation.

ABSTRACT: Translation in baker's yeast involves the coordinated interaction of 200,000 ribosomes, 3,000,000 tRNAs and between 15,000 and 60,000 mRNAs. It is currently unknown whether this specific constellation of components has particular relevance for the requirements of the yeast proteome, or whether this is simply a frozen accident. Our study uses a computational simulation model of the genome-wide translational apparatus of yeast to explore quantitatively which combinations of mRNAs, ribosomes and tRNAs can produce viable proteomes. Surprisingly, we find that if we only consider total translational activity over time without regard to composition of the proteome, then there are many and widely differing combinations that can generate equivalent synthesis yields. In contrast, translational activ

SUBMITTER: Chu D 

PROVIDER: S-EPMC3488257 | biostudies-literature | 2012 Nov

REPOSITORIES: biostudies-literature