Localization of a site for interaction with hepatic male-specific proteins in two rat estrogen sulfotransferase genesстатья
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Дата последнего поиска статьи во внешних источниках: 7 октября 2013 г.
Местоположение издательства:Road Town, United Kingdom
Первая страница:399
Последняя страница:404
Аннотация:Using electromobility shift assay the interaction of fragments of two paralogous rat estrogen sulfotransferase (Ste) genes with proteins of nuclear extracts from male and female rat liver was studied. Male-specific DNA-protein complexes were revealed with labeled oligonucleotides corresponding to fragments +1150/+1449, +1358/+1449, +1397/+1449, and +1417/+1449 of intron 1 of the Ste1 gene. The removal of a 20 bp region corresponding to the sequence +1430/+1449, or even either 5;- or 3;-terminal 5 bp of this region abolished the selective interaction of the oligonucleotides with the male-specific protein(s). According to the results of the experiments on mutual competition of the oligonucleotides, the fragment of the Ste2 gene corresponding to the sequence +1397/+1449 of the Ste1 gene formed complexes with the same male-specific protein(s) as the fragment of the Ste1 gene did. The data suggest the mapped element to participate in gender differentiation of the expression of the Ste1 and Ste2 genes.