Kidney extracts from spontaneously hypertensive rats (SBR) have greater dopamine 1A receptor RNA-binding activity than extracts from normotensive Wistar-Kyoto (WKY) rats

被引：1

作者：

Clerch, LB ^{[1
]}

Wright, A ^{[1
]}

Slobodyansky, E ^{[1
]}

Wang, W ^{[1
]}

Mouradian, MM ^{[1
]}

Jose, P ^{[1
]}

机构：

[1] NINCDS,BETHESDA,MD 20892

来源：

CLINICAL AND EXPERIMENTAL HYPERTENSION | 1997年 / 19卷 / 07期

关键词：

dopamine 1A receptor; kidney; hypertensive rats; RNA-binding protein;

D O I：

10.3109/10641969709083202

中图分类号：

R9 [药学];

学科分类号：

1007 ;

摘要：

Rat kidney extracts contain a 52 kDa protein that binds to the 3' untranslated region of the dopamine 1A (D1A) receptor mRNA at a 243 base-long cis element starting at the stop codon and ending similar to 220 bases upstream of an AUUUA-rich region. The DIA receptor RNA-binding protein (D1A-BP) is redox-sensitive; free sulfhydryl groups on the protein are required for binding. Kidney extracts from SHR have significantly more D1A-BP activity than extracts from WKY rats. When kidney extracts were tested for binding to an 80-base RNA containing four AUUUA repeats, there was also greater binding activity in extracts from SHR. These increases are at least partly specific because there was no difference in catalase RNA-binding protein activity between the two rat strains. These data suggest DIA-BP and AUUUA-binding protein may play a role in posttranscriptional regulation of the D1A receptor in the hypertensive rat.

引用

页码：1009 / 1021

页数：13

共 18 条

[1] Role of the D-1A dopamine receptor in the pathogenesis of genetic hypertension [J].