Structural insights into the targeting of mRNA GU-rich elements by the three RRMs of CELF1.
Structural insights into the targeting of mRNA GU-rich elements by the three RRMs of CELF1.
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DOI:
10.1093/nar/gkt470
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发表时间:
2013-08
影响因子:
14.9
通讯作者:
Searle MS
中科院分区:
文献类型:
--
作者:
Edwards JM;Long J;de Moor CH;Emsley J;Searle MS
The CUG-BP, Elav-like family (CELF) of RNA-binding proteins control gene expression at a number of different levels by regulating pre-mRNA splicing, deadenylation and mRNA stability. We present structural insights into the binding selectivity of CELF member 1 (CELF1) for GU-rich mRNA target sequences of the general form 5′-UGUNxUGUNyUGU and identify a high affinity interaction (Kd ∼ 100 nM for x = 2 and y = 4) with simultaneous binding of all three RNA recognition motifs within a single 15-nt binding element. RNA substrates spin-labelled at either the 3′ or 5′ terminus result in differential nuclear magnetic resonance paramagnetic relaxation enhancement effects, which are consistent with a non-sequential 2-1-3 arrangement of the three RNA recognition motifs on UGU sites in a 5′ to 3′ orientation along the RNA target. We further demonstrate that CELF1 binds to dispersed single-stranded UGU sites at the base of an RNA hairpin providing a structural rationale for recognition of CUG expansion repeats and splice site junctions in the regulation of alternative splicing.
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DOI:
10.1016/j.bbrc.2006.06.177
发表时间:
2006-09-01
影响因子:
3.1
作者:
Barreau, Carine;Watrin, Tanguy;Paillard, Luc
通讯作者:
Paillard, Luc
影响因子:
14.9
作者:
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通讯作者:
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影响因子:
14.9
作者:
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通讯作者:
Corcos L
影响因子:
5.3
作者:
Baldwin, BR;Timchenko, NA;Zahnow, CA
通讯作者:
Zahnow, CA
影响因子:
11.4
作者:
de Moor, CH;Richter, JD
通讯作者:
Richter, JD