Dis3- and exosome subunit-responsive 3′ mRNA instability elements
نویسندگان
چکیده
منابع مشابه
Iron-regulatory proteins, iron-responsive elements and ferritin mRNA translation.
Iron plays a central role in the metabolism of all cells. This is evident by its major contribution to many diverse functions, such as DNA replication, bacterial pathogenicity, photosynthesis, oxidative stress control and cell proliferation. In mammalian systems, control of intracellular iron homeostasis is largely due to posttranscriptional regulation of binding by iron-regulatory RNA-binding ...
متن کاملDrosophila melanogaster Dis3 N-terminal domains are required for ribonuclease activities, nuclear localization and exosome interactions
Eukaryotic cells use numerous pathways to regulate RNA production, localization and stability. Several of these pathways are controlled by ribonucleases. The essential ribonuclease, Dis3, plays important roles in distinct RNA metabolic pathways. Despite much progress in understanding general characteristics of the Dis3 enzyme in vitro and in vivo, much less is known about the contributions of D...
متن کاملDis3-like 1: a novel exoribonuclease associated with the human exosome.
The exosome is an exoribonuclease complex involved in the degradation and maturation of a wide variety of RNAs. The nine-subunit core of the eukaryotic exosome is catalytically inactive and may have an architectural function and mediate substrate binding. In Saccharomyces cerevisiae, the associated Dis3 and Rrp6 provide the exoribonucleolytic activity. The human exosome-associated Rrp6 counterp...
متن کاملArabidopsis AtRRP44A Is the Functional Homolog of Rrp44/Dis3, an Exosome Component, Is Essential for Viability and Is Required for RNA Processing and Degradation
The RNA exosome is a multi-subunit complex that is responsible for 3' to 5' degradation and processing of cellular RNA. Rrp44/Dis3 is the catalytic center of the exosome in yeast and humans. However, the role of Rrp44/Dis3 homologs in plants is still unidentified. Here, we show that Arabidopsis AtRRP44A is the functional homolog of Rrp44/Dis3, is essential for plant viability and is required fo...
متن کاملThe RNA exosome complex central channel controls both exonuclease and endonuclease Dis3 activities in vivo and in vitro
The RNA exosome is an essential ribonuclease complex involved in RNA processing and decay. It consists of a 9-subunit catalytically inert ring composed of six RNase PH-like proteins forming a central channel and three cap subunits with KH/S1 domains located at the top. The yeast exosome catalytic activity is supplied by the Dis3 (also known as Rrp44) protein, which has both endo- and exoribonuc...
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ژورنال
عنوان ژورنال: Biochemical and Biophysical Research Communications
سال: 2012
ISSN: 0006-291X
DOI: 10.1016/j.bbrc.2012.05.141