Evolutionary discrimination of mammalian conserved non-genic sequences (CNGs) - PubMed (original) (raw)
Comparative Study
. 2003 Nov 7;302(5647):1033-5.
doi: 10.1126/science.1087047. Epub 2003 Oct 2.
Affiliations
- PMID: 14526086
- DOI: 10.1126/science.1087047
Comparative Study
Evolutionary discrimination of mammalian conserved non-genic sequences (CNGs)
Emmanouil T Dermitzakis et al. Science. 2003.
Abstract
Analysis of the human and mouse genomes identified an abundance of conserved non-genic sequences (CNGs). The significance and evolutionary depth of their conservation remain unanswered. We have quantified levels and patterns of conservation of 191 CNGs of human chromosome 21 in 14 mammalian species. We found that CNGs are significantly more conserved than protein-coding genes and noncoding RNAS (ncRNAs) within the mammalian class from primates to monotremes to marsupials. The pattern of substitutions in CNGs differed from that seen in protein-coding and ncRNA genes and resembled that of protein-binding regions. About 0.3% to 1% of the human genome corresponds to a previously unknown class of extremely constrained CNGs shared among mammals.
Comment in
- Evolution. Heirlooms in the attic.
Johnston M, Stormo GD. Johnston M, et al. Science. 2003 Nov 7;302(5647):997-9. doi: 10.1126/science.1092271. Science. 2003. PMID: 14605357 No abstract available.
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