The DOI matches its Crossref record; 10 of the 10 references it cites were found in a registry or an index.
Functionality or transcriptional noise? Evidence for selection within long noncoding RNAs
Open accessAbstract
Long transcripts that do not encode protein have only rarely been the subject of experimental scrutiny. Presumably, this is owing to the current lack of evidence of their functionality, thereby leaving an impression that, instead, they represent “transcriptional noise.” Here, we describe an analysis of 3122 long and full-length, noncoding RNAs (“macroRNAs”) from the mouse, and compare their sequences and their promoters with orthologous sequence from human and from rat. We considered three independent signatures of purifying selection related to substitutions, sequence insertions and deletions, and splicing. We find that the evolution of the set of noncoding RNAs is not consistent with neutralist explanations. Rather, our results indicate that purifying selection has acted on the macroRNAs’ promoters, primary sequence, and consensus splice site motifs. Promoters have experienced the greatest elimination of nucleotide substitutions, insertions, and deletions. The proportion of conserved sequence (4.1%–5.5%) in these macroRNAs is comparable to the density of exons within protein-coding transcripts (5.2%). These macroRNAs, taken together, thus possess the imprint of purifying selection, thereby indicating their functionality. Our findings should now provide an incentive for the experimental investigation of these macroRNAs’ functions.
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Basic local alignment search tool
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MethodGenome-wide analysis of mammalian promoter architecture and evolution
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Mercer, T. R., Dinger, M. E., & Mattick, J. S. (2009) · Nature Reviews Genetics · doi:10.1038/nrg2521 · Cited by 5,654
Non-coding RNAs in human disease
Esteller, M. (2011) · Nature Reviews Genetics · doi:10.1038/nrg3074 · Cited by 4,825
Chromatin signature reveals over a thousand highly conserved large non-coding RNAs in mammals
Guttman, M., Amit, I., Garber, M., French, C., Lin, M. F., Feldser, D., Huarte, M., Zuk, O., Carey, B. W., Cassady, J. P., et al. (2009) · Nature · doi:10.1038/nature07672 · Cited by 4,098
Evolution and Functions of Long Noncoding RNAs
Ponting, C. P., Oliver, P. L., & Reik, W. (2009) · Cell · doi:10.1016/j.cell.2009.02.006 · Cited by 4,208
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Metadata
- Authors
- Ponjavic, J., Ponting, C. P., & Lunter, G.
- Venue
- Genome Research
- Publisher
- Cold Spring Harbor Laboratory
- Published
- 2007-03-26
- Volume
- 17
- Issue
- 5
- Pages
- 556-565
- ISSN
- 1088-9051 (ISSN-L)
- OpenAlex
- W2142735201
- Cited by
- 735
- References
- 10
- Type
- posted content
- Language
- en
- Open access
- hybrid
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