Nucleocytoplasmic Protein Transport and Recycling of Ran.
نویسندگان
چکیده
منابع مشابه
A picornavirus protein interacts with Ran-GTPase and disrupts nucleocytoplasmic transport.
Active nucleocytoplasmic transport of protein and RNA in eukaryotes depends on the Ran-GTPase system to regulate cargo-receptor interactions. Several viruses, including the RNA picornaviruses, encode factors that alter nuclear transport with the aim of suppressing synthesis of antiviral factors and promoting viral replication. Picornaviruses in the cardiovirus genus express a unique 67-aa Leade...
متن کاملFacilitated nucleocytoplasmic shuttling of the Ran binding protein RanBP1.
The Ran binding protein RanBP1 is localized to the cytosol of interphase cells. A leucine-rich nuclear export signal (NES) near the C terminus of RanBP1 is essential to maintain this distribution. We now show that RanBP1 accumulates in nuclei of cells treated with the export inhibitor, leptomycin B, and collapse of the nucleocytoplasmic Ran:GTP gradient leads to equilibration of RanBP1 across t...
متن کاملMutations in the YRB1 gene encoding yeast ran-binding-protein-1 that impair nucleocytoplasmic transport and suppress yeast mating defects.
We identified two temperature-sensitive (ts) mutations in the essential gene, YRB1, which encodes the yeast homolog of Ran-binding-protein-1 (RanBP1), a known coregulator of the Ran GTPase cycle. Both mutations result in single amino acid substitutions of evolutionarily conserved residues (A91D and R127K, respectively) in the Ran-binding domain of Yrb1. The altered proteins have reduced affinit...
متن کاملNucleocytoplasmic transport of macromolecules.
Nucleocytoplasmic transport is a complex process that consists of the movement of numerous macromolecules back and forth across the nuclear envelope. All macromolecules that move in and out of the nucleus do so via nuclear pore complexes that form large proteinaceous channels in the nuclear envelope. In addition to nuclear pores, nuclear transport of macromolecules requires a number of soluble ...
متن کاملProtein nucleocytoplasmic transport and its light regulation in plants.
Light exerts a great influence on gene expression, physiology and development pattern in higher plants. Protein factors involved in these processes, such as the photoreceptor, phytochrome B, a key regulatory protein, COP1, and some bZIP transcription factors have been identified and their light-regulated movement between the cytoplasm and the nucleus has been demonstrated. These findings imply ...
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: Cell Structure and Function
سال: 1999
ISSN: 0386-7196,1347-3700
DOI: 10.1247/csf.24.425