In vivo and transcriptome-wide identification of RNA binding protein target sites.
In vivo and transcriptome-wide identification of RNA binding protein target sites.
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DOI:
10.1016/j.molcel.2011.11.009
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发表时间:
2011-12-09
期刊:
影响因子:
16
通讯作者:
Rajewsky, Nikolaus
中科院分区:
文献类型:
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作者:
Jungkamp, Anna-Carina;Stoeckius, Marlon;Mecenas, Desirea;Gruen, Dominic;Mastrobuoni, Guido;Kempa, Stefan;Rajewsky, Nikolaus
Animal mRNAs are regulated by hundreds of RNA binding proteins (RBPs). The identification of RBP targets is crucial for understanding their function. A recent method, PAR-CLIP, uses photoreactive nucleosides to crosslink RBPs to target RNAs in cells prior to immunoprecipitation. Here, we establish iPAR-CLIP (in vivo PAR-CLIP) to determine, at nucleotide resolution, transcriptome-wide binding sites of GLD-1, a conserved, germline-specific translational repressor in C. elegans. We identified 439 reproducible target mRNAs and demonstrate an excellent dynamic range of target detection by iPAR-CLIP. Upon GLD-1 knockdown, protein but not mRNA expression of the 439 targets was specifically upregulated, demonstrating functionality. Finally, we discovered strongly conserved GLD-1 binding sites nearby the start codon of target genes. These sites are functional in vitro and likely confer strong repression in vivo. We propose that GLD-1 interacts with the translation machinery nearby the start codon, a so far unknown mode of gene regulation in eukaryotes.
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影响因子:
14.9
作者:
Anders G;Mackowiak SD;Jens M;Maaskola J;Kuntzagk A;Rajewsky N;Landthaler M;Dieterich C
通讯作者:
Dieterich C
影响因子:
64.5
作者:
Hafner M;Landthaler M;Burger L;Khorshid M;Hausser J;Berninger P;Rothballer A;Ascano M Jr;Jungkamp AC;Munschauer M;Ulrich A;Wardle GS;Dewell S;Zavolan M;Tuschl T
通讯作者:
Tuschl T
影响因子:
16
作者:
Mukherjee N;Corcoran DL;Nusbaum JD;Reid DW;Georgiev S;Hafner M;Ascano M Jr;Tuschl T;Ohler U;Keene JD
通讯作者:
Keene JD
影响因子:
48
作者:
Pepke, Shirley;Wold, Barbara;Mortazavi, Ali
通讯作者:
Mortazavi, Ali
影响因子:
16.8
作者:
通讯作者:
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