. NorthStar 3: Reading and Writing Level 4, Third Edition: English, Andrew, English, by Laura Monahon. eBooks. Read on any device.Get your Kindle for free or free download the Kindle app.NorthStar 3 Reading and Writing 3 Student Book - David C. NorthStar 3 Reading and Writing 3 Student Book, A.NorthStar 3 Reading and Writing 3 Student Book, A.
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Kindle.Buy. The best way to sell Kindle books is Amazon. Get free Kindle reading apps for Android, iPhone, and PC, as well as free Kindle Fire tablets.Temperature-sensitive mutants of Saccharomyces cerevisiae. III. Direct control of mitochondrial protein synthesis.
A temperature-sensitive mutant of Saccharomyces cerevisiae that causes elongation arrest at the rps1-4 gene product has been analyzed for control of protein synthesis in vitro. The mutants have a defective mRNAsub-strain, are sensitive to rifampicin, and have lost the ability to synthesize the rps1-4 mRNA. It has been demonstrated that some mitochondrial protein synthesis is directly controlled by the mRNAsub-strain. The half-lives of mitochondrial proteins synthesized from mRNAsub-strains containing frameshift mutations in the coding regions are identical with those of proteins synthesized from mRNAsub-strains that do not contain frameshifts. The temperature-sensitive mutations of the mRNAsub-strain have been assigned to the rps1-4, trp1-2, trp3-1 and CAN1 genes. It is suggested that in the mutants the defective mRNAsub-strain determines the level of mitochondrial protein synthesis, and it is the defective mRNAsub-strain that is the primary target for the mitochondrial protein synthesis inhibitor rifampicin.
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