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Trends Biochem Sci. 1990 Apr;15(4):148-52.

Involvement of an initiation factor and protein phosphorylation in translational control of GCN4 mRNA.

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  • 1Unit on Molecular Genetics of Lower Eukaryotes, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892.

Abstract

Regulation of the GCN4 gene of Saccharomyces cerevisiae is one of the best-documented instances of gene-specific translational control in an eukaryote. Upstream open reading frames (uORFs) in GCN4 mRNA modulate the flow of scanning ribosomes to the GCN4 start codon according to the availability of amino acids. Recent results suggest that sequences at the termination codons of the uORFs, a general initiation factor, and a protein kinase all make important contributions to the proper functioning of this interesting translational-control element.

PMID:
2187295
[PubMed - indexed for MEDLINE]
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