The ticking tail: daily oscillations in mRNA poly(A) tail length drive circadian cycles in protein synthesis
نویسندگان
چکیده
منابع مشابه
The ticking tail: daily oscillations in mRNA poly(A) tail length drive circadian cycles in protein synthesis.
In this issue of Genes & Development, Kojima and colleagues (pp. 2724-2736) examined the impact of mRNA poly(A) tail length on circadian gene expression. Their study demonstrates how dynamic changes in transcript poly(A) tail length can lead to rhythmic protein expression, irrespective of whether mRNA accumulation is circadian or constitutive.
متن کاملPoly(A) tail length-dependent stabilization of GAP-43 mRNA by the RNA-binding protein HuD.
The neuronal ELAV-like RNA-binding protein HuD binds to a regulatory element in the 3'-untranslated region of the growth-associated protein-43 (GAP-43) mRNA. Here we report that overexpression of HuD protein in PC12 cells stabilizes the GAP-43 mRNA by delaying the onset of mRNA degradation and that this process depends on the size of the poly(A) tail. Using a polysome-based in vitro mRNA decay ...
متن کاملChanges in poly(A) tail length dynamics from the loss of the circadian deadenylase Nocturnin.
mRNA poly(A) tails are important for mRNA stability and translation, and enzymes that regulate the poly(A) tail length significantly impact protein profiles. There are eleven putative deadenylases in mammals, and it is thought that each targets specific transcripts, although this has not been clearly demonstrated. Nocturnin (NOC) is a unique deadenylase with robustly rhythmic expression and los...
متن کاملThe Long Tail of mRNA Regulation
Long stretches of RNA trail after the coding region in most eukaryotic mRNAs. These 3' untranslated regions (3' UTRs) hold the key for many aspects of regulated gene expression, influencing mRNA stability, protein synthesis, and ultimately protein function. Lara Szewczak asked Rachel Green, Ian Macrae, and Christine Mayr about how dynamic regulation by proteins and microRNAs works within 3' UTR...
متن کاملLARP4 mRNA codon-tRNA match contributes to LARP4 activity for ribosomal protein mRNA poly(A) tail length protection
Messenger RNA function is controlled by the 3' poly(A) tail (PAT) and poly(A)-binding protein (PABP). La-related protein-4 (LARP4) binds poly(A) and PABP. LARP4 mRNA contains a translation-dependent, coding region determinant (CRD) of instability that limits its expression. Although the CRD comprises <10% of LARP4 codons, the mRNA levels vary >20 fold with synonymous CRD substitutions that acco...
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: Genes & Development
سال: 2012
ISSN: 0890-9369
DOI: 10.1101/gad.210690.112