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PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2011-4-7
pubmed:abstractText
RNA-seq is a method for studying the transcriptome of cells or tissues by massively parallel sequencing of tens of millions of short DNA fragments. However, the broad dynamic range of gene expression levels, which span more than five orders of magnitude, necessitates considerable over-sequencing to characterize low-abundance RNAs at sufficient depth. Here, we describe a method that enables efficient sequencing of low-abundance RNAs by normalizing or reducing the range spanned by the most abundant RNA species to the least abundant RNA species. This normalization is achieved using an approach that was developed for generating expressed sequence tag (EST) libraries that uses the crab duplex-specific nuclease and exploits the kinetics of DNA annealing. That is, double-stranded cDNA is denatured, then allowed to partially re-anneal, and the most abundant species, which re-anneal most rapidly, are digested with crab duplex-specific nuclease. This procedure substantially decreases the proportion of sequence reads from highly expressed RNAs, facilitating assessment of the full spectrum of the sequence and structure of transcriptomes.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1934-3647
pubmed:author
pubmed:copyrightInfo
© 2011 by John Wiley & Sons, Inc.
pubmed:issnType
Electronic
pubmed:volume
Chapter 4
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
Unit4.12
pubmed:dateRevised
2011-9-26
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Construction of normalized RNA-seq libraries for next-generation sequencing using the crab duplex-specific nuclease.
pubmed:affiliation
Harvard Medical School, Boston, Massachusetts, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural