Nucleotide sequence of the yeast regulatory gene STE7 predicts a protein homologous to protein kinases.

The nucleotide sequence of the STE7 gene from Saccharomyces cerevisiae has been determined. It is one of several regulatory genes implicated in the control of cell-type-specific gene expression in yeast. The predicted amino acid sequence shows homology to several members of the protein kinase family. These results suggest protein phosphorylation may play a key role in regulation leading to cell-type specialization in yeast.