The landscape of C. elegans 3'UTRs.
The landscape of C. elegans 3'UTRs.
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DOI:
10.1126/science.1191244
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发表时间:
2010-07-23
期刊:
影响因子:
--
通讯作者:
Kim JK
中科院分区:
文献类型:
--
作者:
Mangone M;Manoharan AP;Thierry-Mieg D;Thierry-Mieg J;Han T;Mackowiak SD;Mis E;Zegar C;Gutwein MR;Khivansara V;Attie O;Chen K;Salehi-Ashtiani K;Vidal M;Harkins TT;Bouffard P;Suzuki Y;Sugano S;Kohara Y;Rajewsky N;Piano F;Gunsalus KC;Kim JK
Three-prime untranslated regions (3′UTRs) of metazoan messenger RNAs (mRNAs) contain numerous regulatory elements, yet remain largely uncharacterized. Using polyA capture, 3′ rapid amplification of complementary DNA (cDNA) ends, full-length cDNAs, and RNA-seq, we defined ∼26,000 distinct 3′UTRs in Caenorhabditis elegans for ∼85% of the 18,328 experimentally supported protein-coding genes and revised ∼40% of gene models. Alternative 3′UTR isoforms are frequent, often differentially expressed during development. Average 3′UTR length decreases with animal age. Surprisingly, no polyadenylation signal (PAS) was detected for 13% of polyadenylation sites, predominantly among shorter alternative isoforms. Trans-spliced (versus non–trans-spliced) mRNAs possess longer 3′UTRs and frequently contain no PAS or variant PAS. We identified conserved 3′UTR motifs, isoform-specific predicted microRNA target sites, and polyadenylation of most histone genes. Our data reveal a rich complexity of 3′UTRs, both genome-wide and throughout development.
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