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Proc Natl Acad Sci U S A. 1991 Oct 1;88(19):8602-5.

Complementation of snf1, a mutation affecting global regulation of carbon metabolism in yeast, by a plant protein kinase cDNA.

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  • 1Department of Biochemistry and Physiology, Institute of Arable Crops Research Harpenden, Hertfordshire, United Kingdom.

Abstract

A cDNA, cRKIN1, encoding a putative homologue of the yeast (Saccharomyces cerevisiae) SNF1-encoded protein-serine/threonine kinase, has been isolated from a library prepared from rye endosperm mRNA. Northern blot analysis demonstrated the presence of cRKIN1-related transcripts in developing endosperms but not in shoots, and Southern blot analysis showed the presence of a small gene family. SNF1 plays a central role in carbon catabolite repression in yeast and expression of the RKIN1 sequence in yeast snf1 mutants restored SNF1 function. This suggests that the RKIN1 protein has a role in the control of carbon metabolism in endosperms of rye.

PMID:
1924320
PMCID:
PMC52557
[PubMed - indexed for MEDLINE]
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