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Mol Cell Endocrinol. 1994 Feb;99(1):R11-5.

Cloning and expression of cDNA encoding human placental estrogen sulfotransferase.

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  • 1Medical Research Council Group in Molecular Endocrinology, CHUL Research Center, Quebec, Canada.


Using two oligoprimers derived from the bovine placental estrogen sulfotransferase sequence, we amplified a probe for human placental estrogen sulfotransferase. Using this probe to screen a human placental cDNA library constructed in lambda gt11, we isolated a cDNA clone of 1.3 kb encoding human estrogen sulfotransferase. DNA analysis predicts a protein of 295 amino acids with a calculated molecular weight of 34,199. Alignment of the amino acid sequence with other sulfotransferases indicates that human placental estrogen sulfotransferase shares 68.6, 68.2 and 65.9% similarity with bovine placental, guinea pig adrenocortical, and rat liver estrogen sulfotransferase, respectively. It shows also 95.6, 57.6, 85.3, and 54.2% similarity to human phenol, human DHEA, rat phenol, and rat hydroxysteroid sulfotransferase, respectively. Transfection of expression vectors encoding human estrogen sulfotransferase and dehydroepiandrosterone (DHEA) sulfotransferase in human adrenal adenocarcinoma SW-13 cells indicates that estrogen sulfotransferase transforms estrone more specifically, whereas DHEA sulfotransferase is more specific for DHEA and pregnenolone.

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