GATA1: Transcriptional activator which probably serves as a general switch factor for erythroid development. It binds to DNA sites with the consensus sequence [AT]GATA[AG] within regulatory regions of globin genes and of other genes expressed in erythroid cells. May form homodimers or heterodimers with other isoforms. Interacts (via the N-terminal zinc finger) with ZFPM1. Interacts with GFI1B. Interacts with PIAS4; the interaction enhances sumoylation and represses the transactivational activity in a sumoylation-independent manner. Interacts with LMCD1. Interacts with CREBBP; the interaction stimulates acetylation and transcriptional activity in vivo. Interacts with EP300. Erythrocytes. 3 isoforms of the human protein are produced by alternative splicing.
Protein type: DNA-binding; Transcription factor
Chromosomal Location of Human Ortholog: Xq12
Cellular Component: nucleus; transcription factor complex; transcriptional repressor complex
Molecular Function: chromatin binding; chromatin DNA binding; DNA binding; DNA binding transcription factor activity; DNA binding, bending; p53 binding; sequence-specific DNA binding; zinc ion binding
Biological Process: basophil differentiation; cell development; cell-cell signaling; elevation of cytosolic calcium ion concentration; embryonic hemopoiesis; eosinophil differentiation; erythrocyte development; erythrocyte differentiation; homeostasis of number of cells within a tissue; in utero embryonic development; male gonad development; megakaryocyte differentiation; myeloid cell differentiation; negative regulation of apoptosis; negative regulation of bone mineralization; negative regulation of cell proliferation; negative regulation of transcription from RNA polymerase II promoter; organ regeneration; platelet formation; positive regulation of erythrocyte differentiation; positive regulation of mast cell degranulation; positive regulation of osteoblast proliferation; positive regulation of peptidyl-tyrosine phosphorylation; positive regulation of transcription from RNA polymerase II promoter; positive regulation of transcription, DNA-templated; regulation of transcription, DNA-templated; Sertoli cell development; transcription from RNA polymerase II promoter
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