Dendritic BC1 RNA in translational control mechanisms.
Dendritic BC1 RNA in translational control mechanisms.
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DOI:
10.1083/jcb.200506006
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发表时间:
2005-12-05
期刊:
影响因子:
--
通讯作者:
Tiedge H
中科院分区:
文献类型:
--
作者:
Wang H;Iacoangeli A;Lin D;Williams K;Denman RB;Hellen CU;Tiedge H
Translational control at the synapse is thought to be a key determinant of neuronal plasticity. How is such control implemented? We report that small untranslated BC1 RNA is a specific effector of translational control both in vitro and in vivo. BC1 RNA, expressed in neurons and germ cells, inhibits a rate-limiting step in the assembly of translation initiation complexes. A translational repression element is contained within the unique 3′ domain of BC1 RNA. Interactions of this domain with eukaryotic initiation factor 4A and poly(A) binding protein mediate repression, indicating that the 3′ BC1 domain targets a functional interaction between these factors. In contrast, interactions of BC1 RNA with the fragile X mental retardation protein could not be documented. Thus, BC1 RNA modulates translation-dependent processes in neurons and germs cells by directly interacting with translation initiation factors.
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影响因子:
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通讯作者:
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DOI:
10.1073/pnas.77.4.1890
发表时间:
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期刊:
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES
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