The Signal Sequence Coding Region Promotes Nuclear Export of mRNA
نویسندگان
چکیده
منابع مشابه
The Signal Sequence Coding Region Promotes Nuclear Export of mRNA
In eukaryotic cells, most mRNAs are exported from the nucleus by the transcription export (TREX) complex, which is loaded onto mRNAs after their splicing and capping. We have studied in mammalian cells the nuclear export of mRNAs that code for secretory proteins, which are targeted to the endoplasmic reticulum membrane by hydrophobic signal sequences. The mRNAs were injected into the nucleus or...
متن کاملSplicing promotes the nuclear export of β-globin mRNA by overcoming nuclear retention elements.
Most current models of mRNA nuclear export in vertebrate cells assume that an mRNA must have specialized signals in order to be exported from the nucleus. Under such a scenario, mRNAs that lack these specialized signals would be shunted into a default pathway where they are retained in the nucleus and eventually degraded. These ideas were based on the selective use of model mRNA reporters. For ...
متن کاملInhibition of mRNA export in vertebrate cells by nuclear export signal conjugates.
Leucine-rich nuclear export signals (NESs) are recognized by the NES receptor exportin 1 and are central to the export of multiple shuttling proteins and RNAs. The export of messenger RNA in vertebrates was, however, thought to occur by a different pathway, because inhibition by injection of a synthetic Rev NES conjugate could not be demonstrated. Here we find that peptide conjugates composed o...
متن کاملNuclear Roadblocks for mRNA Export
The THO complex and Sub2 RNA helicase have been shown to function in both transcription and mRNA processing. Rougemaille et al. (2008) now uncover evidence that THO/Sub2 coordinates mRNA processing and nuclear export.
متن کاملSus1, Cdc31, and the Sac3 CID Region Form a Conserved Interaction Platform that Promotes Nuclear Pore Association and mRNA Export
The yeast Sac3:Cdc31:Sus1:Thp1 (TREX-2) complex facilitates the repositioning and association of actively transcribing genes with nuclear pores (NPCs)-"gene gating"-that is central to integrating transcription, processing, and mRNA nuclear export. We present here the crystal structure of Sus1 and Cdc31 bound to a central region of Sac3 (the CID domain) that is crucial for its function. Sac3(CID...
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: PLoS Biology
سال: 2007
ISSN: 1545-7885
DOI: 10.1371/journal.pbio.0050322