GATA2 and PU.1 Collaborate To Activate the Expression of the Mouse Gene, Encoding FcεRIβ, through Distinct Mechanisms.

GATA factors GATA1 and GATA2 and ETS factor PU.1 are known to function antagonistically during hematopoietic development. In mouse mast cells, however, these factors are coexpressed and activate the expression of the gene encoding the β chain of the high-affinity IgE receptor (FcεRI).