Searching journal content for articles similar to Yang et al. 27 (9): 1525.

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  1. ...categorized the 5′ ends of RNA reads based on the proximity of their 5′ end to the trans-splicing site (TSS; as many C. elegans gene mRNAs are trans-spliced after transcription, the 5′-most nucleotide of the spliced mRNA differs from the transcription start site). Decapping leaves a 5′ monophosphate (Wang et...
  2. ...more peaks in introns than worms. The distribution of peaks in C. elegans is slightly farther upstream of the TSS than in Drosophila, perhaps reflecting the fact that for many C. elegans gene models the annotated TSS is the site of trans-splicing, with the start of transcription occurring further...
  3. ...most genes in C. elegans are trans-spliced to a 22-nt leader RNA (Blumenthal 2012), leading to removal and degradation of the initial 5′ sequence between the promoter and the trans-splice site, the beginning of the mature mRNA does not usually correspond to the transcription initiation site. Therefore...
  4. ...reveal many more. Operons About 70% of C. elegans transcripts are trans-spliced, with the SL1 splice leader used for genes with independent promoters and the Figure 2. The relative abundance of novel versus known junctions in alternatively spliced pairs within WormBase gene models. For each splice...
  5. ...transcribed pre-mRNAs to form a single mature transcript, potentially increasing the putative combinations of exons able to generate novel proteins ( Tasic et al. 2002 ). The most common form of trans -splicing is found in trypanosomes and Caenorhabditis elegans ; in these organisms, trans -splicing results...
  6. ..., but for the few that are trans-spliced, the trans-splicing plays a role apart from separating polycistronic transcripts or enhancing translation initiation. lincRNAs antisense to endo-siRNA clusters When mapping published (Batista et al. 2008; Gu et al. 2009) and newly generated small-RNA sequencing data...
  7. ...-blocks as opposed to A-blocks is likely due to the involvement of a uracil-rich motif for transsplicing. Trans-splicing is important for the expression of most C. elegans genes. Previous work has shown that trans-splicing efficiency depends upon the presence of a uracil-rich (U-rich) element located upstream...
  8. ...contain operons that are transcribed to produce poly-cistronic pre-mRNA. Nematodes also use trans-splicing to add a short (22 nt) leader sequence to the 59 end of most (;70%) mRNA transcripts (Blumenthal 2005). There are twomajor types of spliced leader in C. elegans: SL1 and SL2. SL1 is most common...
  9. ...forms ( Spieth and Lawson 2005 ). Trans -splicing is common in the worm, with more than half of C. elegans premRNAs receiving an SL1 leader sequence and 20% an SL2 ( Blumenthal 2005 ). More than 90% of the genes are directly supported by experimental evidence. Text Box 1. Completing the C. elegans...
  10. ...the relationship between these sites and promoter sequences, we first needed at least an approximation to the list of C. elegans transcription start sites. Note that only a handful of transcriptional start sites are known for C. elegans , since trans -splicing tends to mask true initiation sites ( Blumenthal 1995...
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