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Biochem Biophys Res Commun. 1994 May 30;201(1):379-87.

Cloning and characterization of the human thromboxane synthase gene promoter.

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  • 1Department of Obstetrics/Gynecology, University of Maryland School of Medicine, Baltimore 21201.


A genomic phage clone hybridized to the 5' end of human thromboxane synthase (TS) cDNA was isolated. Sequencing analysis of a 1.7 kb subfragment revealed that it contained the entire 5' untranslated region and 46 bp of the coding sequence of TS cDNA, an upstream canonical TATA box (TATAAA), and several binding sites for transcription factors (AP1, PEA3, PU.1, and GR), indicative of a promoter/first exon region of the TS gene. RNase protection assay mapped the transcription start site of the human TS gene to the nucleotide A 30 bp downstream from the TATA box. The authenticity of the promoter was further confirmed by its ability to direct expression of a CAT reporter gene in transfected HL60 cells.

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