Number of polyadenylated mRNA transcripts

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Value 15000 Copies/cell
Organism Budding yeast Saccharomyces cerevisiae
Reference von der Haar T. A quantitative estimation of the global translational activity in logarithmically growing yeast cells. BMC Syst Biol. 2008 Oct 162:87 Fig. 2PubMed ID18925958
Primary Source Jelinsky SA, Samson LD. Global response of Saccharomyces cerevisiae to an alkylating agent. Proc Natl Acad Sci U S A. 1999 Feb 1696(4):1486-91.PubMed ID9990050
Method DNA chip technology enables simultaneous examination of how approximately 6,200 Saccharomyces cerevisiae gene transcript levels, representing the entire genome, respond to environmental change.
Comments Although the total mass of cellular RNA cannot be calculated in the same way as proteins because non-coding mRNA regions for each gene contribute to the molecular weight but are not accurately known, the total number of mRNAs in the dataset can easily be calculated as about 12,200, with 95% confidence limits between 6,100 and 18,300 mRNAs per cell. This compares to experimental estimates of about 15,000 poly(A) tailed RNAs per cell generated experimentally [32]. In two important aspects, the curated dataset thus approaches estimates from available experimental data. See BNID 103023
Entered by Uri M
ID 104312