P-body components, Dhh1 and Pat1, are involved in tRNA nuclear-cytoplasmic dynamics
نویسندگان
چکیده
منابع مشابه
Structural analysis of the yeast Dhh1–Pat1 complex reveals how Dhh1 engages Pat1, Edc3 and RNA in mutually exclusive interactions
Translational repression and deadenylation of eukaryotic mRNAs result either in the sequestration of the transcripts in a nontranslatable pool or in their degradation. Removal of the 5' cap structure is a crucial step that commits deadenylated mRNAs to 5'-to-3' degradation. Pat1, Edc3 and the DEAD-box protein Dhh1 are evolutionary conserved factors known to participate in both translational rep...
متن کاملExpression Cloning of Recombinant Escherichia coli lacZ Genes Encoding Cytoplasmic and Nuclear P-galactosidase Variants
Objective(s) Nonviral vector can be an attractive alternative to gene delivery in experimental study. In spite of some advantages in comparison with the viral vectors, there are still some limitations for efficiency of gene delivery in nonviral vectors. To determine the effective expression, the recombinant Escherichia coli lacZ genes were cloned into the different variants of pcDNA3.1 and the...
متن کاملRegulation of tRNA Bidirectional Nuclear-Cytoplasmic Trafficking in Saccharomyces cerevisiae
tRNAs in yeast and vertebrate cells move bidirectionally and reversibly between the nucleus and the cytoplasm. We investigated roles of members of the beta-importin family in tRNA subcellular dynamics. Retrograde import of tRNA into the nucleus is dependent, directly or indirectly, upon Mtr10. tRNA nuclear export utilizes at least two members of the beta-importin family. The beta-importins invo...
متن کاملDiauxic shift-dependent relocalization of decapping activators Dhh1 and Pat1 to polysomal complexes
Dhh1 and Pat1 in yeast are mRNA decapping activators/translational repressors thought to play key roles in the transition of mRNAs from translation to degradation. However, little is known about the physical and functional relationships between these proteins and the translation machinery. We describe a previously unknown type of diauxic shift-dependent modulation of the intracellular locations...
متن کاملThe DExD/H box ATPase Dhh1 functions in translational repression, mRNA decay, and processing body dynamics
Translation, storage, and degradation of messenger ribonucleic acids (mRNAs) are key steps in the posttranscriptional control of gene expression, but how mRNAs transit between these processes remains poorly understood. In this paper, we functionally characterized the DExD/H box adenosine triphosphatase (ATPase) Dhh1, a critical regulator of the cytoplasmic fate of mRNAs. Using mRNA tethering ex...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: RNA
سال: 2011
ISSN: 1355-8382
DOI: 10.1261/rna.2558511