Abstract:
:Since estrogens strongly suppress the expression of alpha 2u-globulin genes in the rat liver, we studied the binding of estrogen-receptor complexes to fragments derived from alpha 2u-globulin gene RAO 01 using a DNA-cellulose competition assay. Rat uterus cytosol labelled with [3H]estradiol was used as a source of the estrogen receptor. As a positive control in these experiments we used an oligonucleotide containing the estrogen response element (ERE) cloned into pUC18. Our experiments indicate that estrogen-receptor complexes bind specifically to the ERE and to a fragment of RAO 01 located in the 5'-upstream region (bp -606 up to -575). This fragment is conserved among other members of this gene family. This is the first time that in vitro estrogen receptor binding is observed to gene fragments derived from a gene that is repressed by this steroid in vivo.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Van Dijck P,Verhoeven Gdoi
10.1016/s0006-291x(05)80127-5subject
Has Abstractpub_date
1992-01-15 00:00:00pages
174-81issue
1eissn
0006-291Xissn
1090-2104pii
S0006-291X(05)80127-5journal_volume
182pub_type
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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journal_title:Biochemical and biophysical research communications
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更新日期:2013-11-01 00:00:00