The transcriptional regulator, Arg82, is a hybrid kinase with both monophosphoinositol and diphosphoinositol polyphosphate synthase activity

Abstract
The Arg82 gene of Saccharomyces cerevisiae encodes a transcriptional regulator that phosphorylates inositol 1,4,5‐trisphosphate [Saiardi et al. (1999) Curr. Biol. 9, 1323–1326]. However, some controv...