Abstract
GATA-3 is a T cell-specific transcription factor and is essential for the development of the T cell lineage. Recently, it was shown that the expression of GATA-3 is further induced in CD4+ helper T cells upon differentiation into type 2 but not type 1 effector cells. Here, we report the molecular cloning of a GATA-3 interacting protein, repressor of GATA (ROG). ROG is a lymphoid-specific gene and is rapidly induced in Th cells upon stimulation with anti-CD3. In in vitro assays, ROG represses the GATA-3-induced transactivation. Furthermore, overexpression of ROG in Th clones inhibits the production of Th cytokines. Taken together, our results suggest that ROG might play a critical role in regulating the differentiation and activation of Th cells.
Publication types
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Amino Acid Sequence
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Animals
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Base Sequence
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Binding Sites
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Chromosome Mapping
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Cloning, Molecular
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Cytokines / biosynthesis
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Cytokines / genetics*
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DNA / metabolism
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DNA, Complementary
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DNA-Binding Proteins / antagonists & inhibitors
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DNA-Binding Proteins / genetics
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DNA-Binding Proteins / metabolism*
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GATA3 Transcription Factor
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Gene Expression Regulation*
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Humans
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Jurkat Cells
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Kruppel-Like Transcription Factors
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Lymphocytes / metabolism
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Mice
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Mice, Inbred BALB C
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Molecular Sequence Data
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Precipitin Tests
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Promyelocytic Leukemia Zinc Finger Protein
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Protein Binding
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Repressor Proteins / genetics
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Repressor Proteins / metabolism*
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Th1 Cells / metabolism
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Th2 Cells / metabolism
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Trans-Activators / antagonists & inhibitors
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Trans-Activators / genetics
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Trans-Activators / metabolism*
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Transcription Factors / genetics
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Transcriptional Activation
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Tumor Cells, Cultured
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Zinc Fingers
Substances
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Cytokines
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DNA, Complementary
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DNA-Binding Proteins
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GATA3 Transcription Factor
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GATA3 protein, human
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Gata3 protein, mouse
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Kruppel-Like Transcription Factors
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Promyelocytic Leukemia Zinc Finger Protein
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Repressor Proteins
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Rog protein, mouse
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Trans-Activators
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Transcription Factors
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ZBTB32 protein, human
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Zbtb16 protein, mouse
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ZBTB16 protein, human
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DNA