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. 1992 Sep 11;20(17):4429–4436. doi: 10.1093/nar/20.17.4429

Interaction of the erythroid transcription factor cGATA-1 with a critical auto-regulatory element.

G Schwartzbauer 1, K Schlesinger 1, T Evans 1
PMCID: PMC334168  PMID: 1408744

Abstract

We have performed a mutational analysis of the promoter for the chicken erythroid-specific GATA-1 transcription factor, and have investigated in detail the interaction of the factor with an upstream auto-regulatory element (ARE). We find that a single proximal GATA binding site of the ARE is required for promoter activity in primary erythroid cells; however, this minimal promoter is inappropriately active in fibroblasts. At least two molecules of GATA-1 can interact with the ARE, and sequences outside of the consensus site appear critical for the transcriptional activity of the bound protein. Finally, we provide evidence for complex protein/DNA interactions at the ARE, including the ability of GATA-1 to bend DNA.

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Selected References

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