Abstract：
:Interference with nucleocytoplasmic transport is a strategy employed by certain viruses to compromise host cellular function. While it has been shown that the matrix (M) protein of the vesicular stomatitis virus (VSV) inhibits nuclear export of host cell mRNAs, the underlying mechanism has not been fully established. Here we show that VSV M protein binds the mRNA export factor Rae1/mrnp41. A mutant of M protein defective in Rae1 binding is unable to inhibit mRNA nuclear export. We further show that increased expression of Rae1 fully reverts the inhibition of mRNA export induced by M protein or following virus infection. We found that Rae1 is induced by interferon-gamma, a cytokine that plays a critical role in the immune response to viruses, such as VSV. Thus, these results demonstrate that VSV M protein blocks mRNA export by disrupting Rae1 function, which can be reverted by induction of Rae1 expression.
journal_name
Mol Celljournal_title
Molecular cellauthors
Faria PA,Chakraborty P,Levay A,Barber GN,Ezelle HJ,Enninga J,Arana C,van Deursen J,Fontoura BMdoi
10.1016/j.molcel.2004.11.023subject
Has Abstractpub_date
2005-01-07 00:00:00pages
93-102issue
1eissn
1097-2765issn
1097-4164pii
S1097-2765(04)00714-2journal_volume
17pub_type
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