Redirecting SR Protein Nuclear Trafficking through an Allosteric Platform.
Redirecting SR Protein Nuclear Trafficking through an Allosteric Platform.
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DOI:
10.1016/j.jmb.2017.05.022
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发表时间:
2017-07-07
影响因子:
5.6
通讯作者:
Adams JA
中科院分区:
文献类型:
--
作者:
Aubol BE;Hailey KL;Fattet L;Jennings PA;Adams JA
Although phosphorylation directs serine-arginine (SR) proteins from nuclear storage speckles to the nucleoplasm for splicing function, dephosphorylation paradoxically induces similar movement raising the question of how such chemical modifications are balanced in these essential splicing factors. In this new study we investigated the interaction of protein phosphatase 1 (PP1) with the SR protein SRSF1 to understand the foundation of these opposing effects in the nucleus. We found that RNA recognition motif 1 (RRM1) in SRSF1 binds PP1 and represses its catalytic function through an allosteric mechanism. Disruption of RRM1-PP1 interactions reduces the phosphorylation status of the RS domain in vitro and in cells, re-directing SRSF1 in the nucleus. The data imply that an allosteric SR protein-phosphatase platform balances phosphorylation levels in a “goldilocks” region for the proper subnuclear storage of an SR protein splicing factor.
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影响因子:
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作者:
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通讯作者:
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DOI:
10.1073/pnas.1017700108
发表时间:
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影响因子:
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作者:
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DOI:
10.1111/j.1432-1033.1983.tb07363.x
发表时间:
1983-01-01
期刊:
EUROPEAN JOURNAL OF BIOCHEMISTRY
影响因子:
--
作者:
FOULKES, JG;STRADA, SJ;COHEN, P
通讯作者:
COHEN, P