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Gene. 1987;55(2-3):277-85.

Regulation of arginine metabolism in Saccharomyces cerevisiae: expression of the three ARGR regulatory genes and cellular localization of their products.

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Laboratoire de Microbiologie, Faculté des Sciences, Université Libre de Bruxelles, Belgium.


Three regulatory proteins are involved in the control of arginine metabolism in yeast: ARGRI, ARGRII and ARGRIII. The control region and part of the coding sequence of the ARGR genes were fused to the Escherichia coli lacZ gene. These chimeras were used to study the expression of the regulatory genes as well as the cellular compartmentalization of the regulatory products. Our results show that the three ARGR proteins are localized in the nucleus and that their synthesis is not regulated by arginine nor by any of the other ARGR products. However, some data suggest that the ARGRIII protein could control ARGRI activity.

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