title: Expression of the chicken GATA factor family during early erythroid development and differentiation.
abstract: The DNA motif WGATAR has been identified within transcriptional regulatory domains of globin and other erythroid-specific genes and the activator proteins that bind to this regulatory element, the GATA factors, belong to a multi-gene family that is expressed in chicken erythroid cells. Here we show that, as in chickens, multiple members of the GATA factor family are expressed in human and murine erythroid cells. During the early stages of chicken embryogenesis (well before blood island formation), each of the GATA family members is transcribed with a unique temporal and spatial pattern. In the primitive erythroid lineage, transcription of the embryonic epsilon-globin gene parallels GATA-1 expression while the switch to beta-globin transcription in definitive erythroid cells is directly preceded by a pronounced increase in GATA-3 accumulation. The timing and pattern of expression of these different mRNAs during avian erythroid development and differentiation suggests that temporally regulated changes in GATA factor expression are required for vertebrate hematopoiesis.
authors.affiliation: Department of Biochemistry, Molecular Biology and Cell Biology, Northwestern University, Evanston, IL 60208-3500.
authors.forename: M W
authors.initials: MW
authors.lastname: Leonard
authors.forename: K C
authors.initials: KC
authors.lastname: Lim
authors.forename: J D
authors.initials: JD
authors.lastname: Engel
mesh_terms: D000818:Animals; D001483:Base Sequence; D002454:Cell Differentiation / Q000235:genetics; D002642:Chick Embryo; D004268:DNA-Binding Proteins / Q000235:genetics*; D015672:Erythroid Precursor Cells / Q000502:physiology*; D050981:Erythroid-Specific DNA-Binding Factors; D004920:Erythropoiesis / Q000235:genetics*; D050982:GATA1 Transcription Factor; D050989:GATA2 Transcription Factor; D050990:GATA3 Transcription Factor; D015870:Gene Expression / Q000502:physiology; D006801:Humans; D051379:Mice; D008969:Molecular Sequence Data; D016133:Polymerase Chain Reaction; D015534:Trans-Activators / Q000235:genetics; D014157:Transcription Factors / Q000235:genetics*
chemical_list: D004268:DNA-Binding Proteins; D050981:Erythroid-Specific DNA-Binding Factors; D050982:GATA1 Transcription Factor; C494688:GATA1 protein, human; D050989:GATA2 Transcription Factor; C494711:GATA2 protein, human; D050990:GATA3 Transcription Factor; C494749:GATA3 protein, human; C494689:Gata1 protein, mouse; C494712:Gata2 protein, mouse; C494748:Gata3 protein, mouse; D015534:Trans-Activators; D014157:Transcription Factors