Analysis of the p53/CEP-1 regulated non-coding transcriptome in C. elegans by an NSR-seq strategy
Derong Xu , Guifeng Wei , Ping Lu , Jianjun Luo , Xiaomin Chen , Geir Skogerbø , Runsheng Chen
Protein Cell ›› 2014, Vol. 5 ›› Issue (10) : 770 -782.
Analysis of the p53/CEP-1 regulated non-coding transcriptome in C. elegans by an NSR-seq strategy
In recent years, large numbers of non-coding RNAs (ncRNAs) have been identified in C. elegans but their functions are still not well studied. In C. elegans, CEP-1 is the sole homolog of the p53 family of genes. In order to obtain transcription profiles of ncRNAs regulated by CEP-1 under normal and UV stressed conditions, we applied the ‘not-sorandom’ hexamers priming strategy to RNA sequencing in C. elegans, This NSR-seq strategy efficiently depleted rRNA transcripts from the samples and showed high technical replicability. We identified more than 1,000 ncRNAs whose apparent expression was repressed by CEP-1, while around 200 were activated. Around 40% of the CEP-1 activated ncRNAs promoters contain a putative CEP-1-binding site. CEP-1 regulated ncRNAs were frequently clustered and concentrated on the X chromosome. These results indicate that numerous ncRNAs are involved in CEP-1 transcriptional network and that these are especially enriched on the X chromosome in C. elegans.
p53/CEP-1 / C. elegans / ncRNA / removal rRNA / NSR-seq / high technical replicability
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This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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