The GATA
family proteins are a group of
zinc finger transcription factors that are expressed in
human and mammalian
animals and
play an important
role in mammalian organ
morphogenesis,
cell proliferation and
sex differentiation. GATA-4 and GATA-6 have been identified in the
ovaries and
testes of
humans,
mice,
pigs and
chickens. GATA-4 contributes to fetal
male gonadal development by regulating the
genes that mediate Müllerian duct regression and the onset of
testosterone production. GATA-4 and GATA-6 are localized in and regulate the function of the ovarian and testicular somatic
cells of fetal
mice, especially
granulosa cells, thecal
cells, Sertoli cells and
Leydig cells. GATA-4 is also present in the
germ cells of fetal and prepubertal
mice.