Summary
Using differential hybridization, the cDNA copy of a Neurospora gene coding for an abundant glucose-repressible mRNA (grg-l) has been isolated. The cDNA was used to clone the genomic copy, and both were sequenced. The cDNA is nearly full length and contains putative translational start and termination codons. Conceptual translation indicates that grg-1 mRNA could direct the synthesis of a 7,000 molecular weight polypeptide. The genomic clone, contained in an 1,888 by PvuII fragment, encompasses the entire cDNA as well as 838 by of 5′ and 369 bp of 3′ flanking sequence. Comparison of the cDNA and genomic clones revealed the presence of two short introns in potential protein-coding sequences. grg-1 message levels were found to increase within minutes following the onset of glucose deprivation and rise 50 fold during the first 90 min of derepression.
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McNally, M.T., Free, S.J. Isolation and characterization of a Neurospora glucose-repressible gene. Curr Genet 14, 545–551 (1988). https://doi.org/10.1007/BF00434079
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DOI: https://doi.org/10.1007/BF00434079