Structure of the N-terminal Mlp1-binding domain of the Saccharomyces cerevisiae mRNA-binding protein, Nab2.
Structure of the N-terminal Mlp1-binding domain of the Saccharomyces cerevisiae mRNA-binding protein, Nab2.
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DOI:
10.1016/j.jmb.2007.11.087
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发表时间:
2008-02-29
影响因子:
5.6
通讯作者:
Stewart, Murray
中科院分区:
文献类型:
--
作者:
Grant, Richard P.;Marshall, Neil J.;Yang, Ji-Chun;Fasken, Milo B.;Kelly, Seth M.;Harrernan, Michelle T.;Neuhaus, David;Corbett, Anita H.;Stewart, Murray
Nuclear abundant poly(A) RNA-binding protein 2 (Nab2) is an essential yeast heterogeneous nuclear ribonucleoprotein that modulates both mRNA nuclear export and poly(A) tail length. The N-terminal domain of Nab2 (residues 1–97) mediates interactions with both the C-terminal globular domain of the nuclear pore-associated protein, myosin-like protein 1 (Mlp1), and the mRNA export factor, Gfd1. The solution and crystal structures of the Nab2 N-terminal domain show a primarily helical fold that is analogous to the PWI fold found in several other RNA-binding proteins. In contrast to other PWI-containing proteins, we find no evidence that the Nab2 N-terminal domain binds to nucleic acids. Instead, this domain appears to mediate protein:protein interactions that facilitate the nuclear export of mRNA. The Nab2 N-terminal domain has a distinctive hydrophobic patch centered on Phe73, consistent with this region of the surface being a protein:protein interaction site. Engineered mutations within this hydrophobic patch attenuate the interaction with the Mlp1 C-terminal domain but do not alter the interaction with Gfd1, indicating that this patch forms a crucial component of the interface between Nab2 and Mlp1.
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影响因子:
8
作者:
DIAMOND, R
通讯作者:
DIAMOND, R
影响因子:
21.3
作者:
Alcazar-Roman, Abel R.;Tran, Elizabeth J.;Wente, Susan R.
通讯作者:
Wente, Susan R.
DOI:
10.1107/s0907444994010723
发表时间:
1995-03-01
期刊:
ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY
影响因子:
--
作者:
DIAMOND, R
通讯作者:
DIAMOND, R
影响因子:
13.8
作者:
Blencowe, BJ;Ouzounis, CA
通讯作者:
Ouzounis, CA
影响因子:
64.5
作者:
Casolari, JM;Brown, CR;Silver, PA
通讯作者:
Silver, PA