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FEBS Lett. 1998 Apr 3;425(3):475-8.

Hexokinase PII has a double cytosolic-nuclear localisation in Saccharomyces cerevisiae.

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  • 1Departamento de Biotecnología de Alimentos, Instituto de Agroquímica y Tecnología de Alimentos, CSIC, Burjassot Valencia, Spain.


We describe here that the HXK2 gene product, isoenzyme PII of hexokinase, is located in both the nucleus and the cytoplasm of Saccharomyces cerevisiae cells. This conclusion is supported by assays of hexokinase-specific activity in isolated nuclei from wild-type and hxk1lhxk2 double mutant strains, by immunoblot experiments using anti-Hxk2 antibodies and by observation of the fluorescence distribution of a Hxk2-GFP fusion protein in cells transformed with the HXK2::gfp gene.

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