3' splice site recognition in nematode trans-splicing involves enhancer-dependent recruitment of U2 snRNP.
3' splice site recognition in nematode trans-splicing involves enhancer-dependent recruitment of U2 snRNP.
复制标题
线虫转拼中的 3 剪接位点识别涉及 U2 snRNP 的增强子依赖性募集。
DOI:
10.1017/s1355838201010263
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发表时间:
2001
期刊:
影响因子:
--
通讯作者:
Nilsen,TW
中科院分区:
文献类型:
--
作者:
Romfo,CM;Maroney,PA;Wu,S;Nilsen,TW
Trans-splicing requires that 5′ and 3′ splice sites be independently recognized. Here, we have used mutational analyses and a sensitive nuclease protection assay to determine the mechanism of trans-3′ splice site recognition in vitro. Efficient recognition of the 3′ splice site is dependent upon both the sequence of the 3′ splice site itself and enhancer elements located in the 3′ exon. We show that the presence of three distinct classes of enhancers results in increased binding of U2 snRNP to the branchpoint region. Several lines of evidence strongly suggest that the increased binding of U2 snRNP is mediated by U2AF. These results expand the roles of enhancers in constitutive splicing and provide direct support for the recruitment model of enhancer function.
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DOI:
--
发表时间:
1995
期刊:
RNA (New York, N.Y.)
影响因子:
--
作者:
Conrad,R;Lea,K;Blumenthal,T
通讯作者:
Blumenthal,T
影响因子:
4.5
作者:
J. Denker;P. Maroney;Yi-Tao Yu;R. A. Kanost;Timothy W. Nilsen
通讯作者:
J. Denker;P. Maroney;Yi-Tao Yu;R. A. Kanost;Timothy W. Nilsen
影响因子:
64.8
作者:
M. Chiara;R. Reed
通讯作者:
R. Reed
影响因子:
4.5
作者:
P. Maroney;Yi-Tao Yu;Yi-Tao Yu;Marzena Jankowska;Timothy W. Nilsen
通讯作者:
P. Maroney;Yi-Tao Yu;Yi-Tao Yu;Marzena Jankowska;Timothy W. Nilsen
影响因子:
1.5
作者:
Ismaïli, N;Pérez-Morga, D;Pays, E
通讯作者:
Pays, E