I. Mayordomo et P. Sanz, Human pancreatic glucokinase (GlkB) complements the glucose signalling defect of Saccharomyces cerevisiae hxk2 mutants, YEAST, 18(14), 2001, pp. 1309-1316
Human pancreatic glucokinase (GlkB, hexokinase IV) has been expressed in Sa
ccharomyces cerevisiae. The recombinant protein showed similar enzyme kinet
ics to those described for the original enzyme. When expressed in hxk2 yeas
t mutants, GlkB complemented both the glucose induction and the glucose rep
ression defects present in the mutant. It was also functional in regulating
the activity of the Snf1 kinase complex in response to glucose, participat
ing in the regulation of the Reg1/Glc7 phosphatase complex, as its yeast co
unterpart. Copyright (C) 2001 John Wiley & Sons, Ltd.