Mapping and functional analysis of an instability element in phosphoenolpyruvate carboxykinase mRNA.
Mapping and functional analysis of an instability element in phosphoenolpyruvate carboxykinase mRNA.
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磷酸烯醇丙酮酸羧激酶 mRNA 中不稳定元件的定位和功能分析。
DOI:
10.1152/ajprenal.2000.279.5.f866
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发表时间:
2000
期刊:
影响因子:
--
通讯作者:
Curthoys,NP
中科院分区:
文献类型:
--
作者:
Laterza,OF;Taylor,L;Unnithan,S;Nguyen,L;Curthoys,NP
Phosphoenolpyruvate carboxykinase (PEPCK) is a key regulatory enzyme of renal gluconeogenesis. The 3′-nontranslated region of the PEPCK mRNA contains an instability element that facilitates its rapid turnover and contributes to the regulation of PEPCK gene expression. Such processes are mediated by specific protein-binding elements. Thus RNA gel shift analysis was used to identify proteins in rat renal cortical cytosolic extracts that bind to the 3′-nontranslated region of the PEPCK mRNA. Deletion constructs were then used to map the binding interactions to two adjacent RNA segments (PEPCK-6 and PEPCK-7). However, competition experiments established that only the binding to PEPCK-7 was specific. Functional studies were performed by cloning similar segments in a luciferase reporter construct, pLuc/Zeo. This analysis indicated that both PEPCK-6 and PEPCK-7 segments were necessary to produce a decrease in luciferase activity equivalent to that observed with the full-length 3′-nontranslated region. Thus the PEPCK-7 segment binds a specific protein that may recruit one or more proteins to form a complex that mediates the rapid decay of the PEPCK mRNA.
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DOI:
--
发表时间:
1984
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Sasaki,K;Cripe,TP;Koch,SR;Andreone,TL;Petersen,DD;Beale,EG;Granner,DK
通讯作者:
Granner,DK
DOI:
--
发表时间:
1993
期刊:
European Journal of Biochemistry
影响因子:
--
作者:
B. Christ;A. Nath
通讯作者:
A. Nath
影响因子:
4.8
作者:
N. Nachaliel;Deepak R Jain;Y. Hod
通讯作者:
Y. Hod
影响因子:
5.2
作者:
D. Granner;K. Sasaki;David T. W. Chu
通讯作者:
David T. W. Chu
DOI:
--
发表时间:
1988
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Hod,Y;Hanson,RW
通讯作者:
Hanson,RW